Umthwalo wamagagasi kanye nowamanje akufanele kuthathwe njengemithwalo emibili ezimele ebalwa ngokwehlukana bese ihlanganiswa ndawonye.Ekuhlaziyweni kwesakhiwo sasogwini lolwandle, indlela efanele iwukuqala ngokunquma ukunyakaza kwamanzi nezinhlayiya zendawo okubangelwa amagagasi nemisinga endaweni efanayo nesikhathi esifanayo, ukuhlanganisa izingxenye zejubane lazo ohlelweni oluhambisanayo, bese kubalwa amandla e-hydrodynamic aphumayo.

Lo mehluko uba ngobaluleke kakhulu ezakhiweni ezingasogwini ezivezwe amagagasi amakhulu, imisinga enamandla, kanye namaphrofayili wamanje ayinkimbinkimbi. Kungathinta kakhulu amandla okuhudula abaliwe, ikakhulukazi uma i-Morison equation isetshenziselwa amalungu ama-tubular amancane.

Lesi sihloko sichaza izimiso zobunjiniyela ngemuvaukusebenzisana kwamagagasi nogesi, ukwelula iphrofayili yamanje, inhlanganisela yevektha yejubane, amandla okudonsa eMorison, kanye nomodeli womthwalo wamagagasi nogesi ku-SACS.

1. Kungani Amagagasi kanye Nemithwalo Yamanje Ingenakuhlale Ingezwa Ngokuqondile

Indlela evamile ekuhlaziyweni kwesakhiwo sasogwini lolwandle ukubala imithwalo yamagagasi kanye nemithwalo yamanje ngokuzimela bese uhlanganisa amandla avelayo ndawonye.

Kodwa-ke, lokhu akusho ukuthi umthwalo wangempela we-hydrodynamic esakhiweni.

Umbuzo oyisisekelo uthi:

Iyini ijubane langempela lamanzi elizungeze ilungu lesakhiwo endaweni efanayo nangesikhathi esifanayo?

Ijubane elibangelwa amagagasi kanye nejubane lamanje likhona kanyekanye emanzini. Ngakho-ke, ijubane lamanzi endawo kufanele liqale lisungulwe ngokuhlanganisa ama-vectors ejubane lawo. Ijubane elivelayo libe selisetshenziswa ukubala amandla e-hydrodynamic.

Lokhu kubaluleke kakhulu ku-ingxenye yokuhudula yesibalo se-Morison, ngoba amandla okuhudula alingana nesikwele sejubane elihlobene.

Ngakho-ke:

Ukuhlanganisa ijubane lemvelo kuqala bese kubalwa amandla e-hydrodynamic ngokuvamile akufani nokubala amandla amagagasi namanje ngokuzimela bese ufaka imiphumela kamuva.

2. Uvelaphi Umsinga Ngaphezu Kwezinga Lamanzi Angashukumi?

Cabanga ngesakhiwo esisogwini lolwandle esisesimweni sesiphepho lapho:

• Izinga lamanzi anganyakazi lichazwa ngokuthiz = 0
• Ukujula kwamanzi80 m
• Iphrofayili yamanje yokufaka ichazwa kuphela kuze kufike ezingeni lamanzi anganyakazi
• I-wave crest ifinyelelaη = +8 m

Lapho i-wave crest idlula isakhiwo, indawo ekhululekile esheshayo iphakama ibe yi-+8 m.

Ilungu lesakhiwo elitholakala e-z = +4 mngakho-ke icwiliswe okwesikhashana.

Kodwa iphrofayili yamanje yokuqala ayinikezi ngqo ijubane lamanje ku-+4 m ngoba iphrofayili yokuqala yayichazwe kuphela kuze kufike ezingeni lamanzi anganyakazi.

Ngakho-ke inkinga yobunjiniyela akuyona ukunquma okwamanjengaphezu kwe-wave crestKunalokho, kuwukunquma ijubane lamanje esifundeni okungukuthi:

ngaphezu kwezinga lamanzi athule kodwa ngaphansi kobuso bamagagasi asheshayo.

Enye indlela yobunjiniyela ukuguqula iphrofayili yamanje ngokwendawo ekhululekile ngokushesha. Iphrofayili yamanje yelulwa noma icindezelwe ngempumelelo ukuze:

• Izinsalela zasemanzini angaphansi kolwandle ezihlotshaniswa nolwandle
• Ubuso begagasi elisheshayo buhambisana nomngcele ongaphezulu wephrofayili yamanje yokuqala

Lokhu kunikeza ukusatshalaliswa kwejubane lamanje okuqhubekayo kuyo yonke indawo emanzi ngokushesha.

3. Ukwelula Iphrofayili Yamanje: Ukudweba Imephu Yokuphakama Kwendawo

Ukwelula iphrofayili yamanje akufanele kuthathwe njengokumane kuphindaphindwe ijubane ngalinye lamanje ngesici sokukala.

Umsebenzi oyinhloko ukwenza lokhuhlela ukuphakama kwesakhiwo samanje endaweni ehambisanayo yokuphakama kwereferensi kuphrofayela yamanje yokuqala, bese uthola ijubane lamanje kuleso simo esibekwe kumephu.

Ukuze kube lula ukwelula okuqondile, ubudlelwano bungachazwa kanje:

z' = -d + (z + d) × d / (d + η)

kuphi:

• d= ukujula kwamanzi esiphepho
• η= ukuphakama kwamagagasi okusheshayo
• z= ukuphakama kwamanje endaweni yesakhiwo
• z'= ukuphakama okumephiwe kuphrofayela yamanje yokuqala

Uhlelo olufanayo lokubhekisela oluqondile kufanele lusetshenziswez, z' kanye no-η, ngenani elihle eliya phezulu.

Isibonelo, cabanga:

• Ukujula kwamanzi:d = 80 m
• Ukuphakama kwamagagasi:η = +8 m

Ukumapha kungaboniswa kanje:

Lokhu kusho ukuthi ijubane lamanje kuz = +4 mkutholakala ngokuhlola iphrofayili yamanje yokuqala cishe cishez' = −3.64 m.

Isibonelo Sokuhunyushwa Kwejubane Lamanje

Ake sithi iphrofayili yamanje yokuqala inayo:

• Ijubane lamanje ku-z = 0 m:1.5 m/s
• Ijubane lamanje ku-z = −20 m:1.2 m/s

Uma kusetshenziswa ukuhunyushwa okuqondile, ijubane elibekwe kumephu cishe elingu-−3.64 m lingatholakala kula manani amabili.

Iphuzu elibalulekile yileli:

Ukunwebeka kushintsha indawo lapho kutholakala khona ijubane lamanje. Akugcini nje ngokuphindaphinda wonke amajubane amanje ngo-88/80.

Lo mehluko ubalulekile lapho kuhunyushwa ukuguqulwa kwephrofayili yamanje ekuhlaziyweni kwe-hydrodynamic ogwini lolwandle.

4. Ukwelula Iphrofayili Yamanje Eqondile vs. Engeyona Eqondile

Ukwelula iphrofayili yamanje akugcini nje ngokukhawulelwa endleleni eyodwa yezibalo.

I-API RP 2A-WSD, Uhlelo lwama-22, Isigaba 5.3.1.2.6ikhomba ukwelula okungeyona imigqa njengendlela ekhethwayo ngaphansi kwezimo ezichazwe yindinganiso, kuyilapho ixoxa ngezindlela ezilinganiselwe zezici ezithile zephrofayili yamanje.

Ngesilabhu esingaphezulu esijiyile esinokusabalalisa kwejubane okulinganayo, ukunwetshwa okulula okuqondile kunganikeza isilinganiso esifanele sokwelula okungekona okuqondile.

Ngezinye izinhlobo zamaphrofayili amanje,ukwelula okuqondile kungasetshenziswa futhi njengokulinganisa kobunjiniyela, kuye ngezimo ezifanele kanye nendlela yokuhlaziya.

Ngakho-ke, kufanele kugwenywe iziphetho ezimbili:

• Akulungile ukucabanga ukuthi yonke iphrofayili yamanje ingandiswa nje iye phezulu ngaphandle kokucatshangelwa.
• Akulungile futhi ukucabanga ukuthi ukwelula okuqondile akwamukeleki emhlabeni wonke.

Ukukhetha kufanele kusekelwe ezicini zephrofayili yamanje, indinganiso yokuklama efanele, kanye nezidingo zokuhlaziya.

Iphrofayela Yamanje vs. I-Wave Kinematics

Omunye umehluko obalulekile ukuthiukwelula iphrofayili yamanje kanye ne-wave kinematics akuyona inqubo efanayo yomzimba.

Ukwelula kwamanje kunquma ukuthi iphrofayili yejubane lamanje ihlelwe kanjani endaweni emanzi ngokushesha.

Izindlela ezifanaUkunweba i-wheelerzihlotshaniswa nokwelashwa kwe-wave kinematics.

Nakuba imiqondo efanayo yokumapha ukuphakama ingavela ngezindlela ezahlukene, akufanele ihunyushwe ngokuzenzakalelayo njengesethingi efanayo yesofthiwe noma ukulungiswa okufanayo ngokomzimba.

5. Amaza kanye nesivinini samandla kumele kuhlanganiswe njengama-vector

Uma ijubane lamanje lendawo selinqunyiwe, lingahlanganiswa nejubane elibangelwa yigagasi.

Kodwa-ke, ijubane kufanele lihlanganiswe njengobaama-vector, kunokuba nje wengeze ubukhulu bazo.

Isibonelo, ngesikhathi esithile:

• Ijubane lamagagasi =3 m/s ngasempumalanga
• Ijubane lamanje =1 m/s ngasenyakatho

Ijubane elivundlile eliphumelayo yileli:

U = √(3² + 1²) ≈ 3.16 m/s

Ngakho-ke akusikho i-4 m/s.

Uma ijubane lamagagasi kanye namanje lihambisana kahle futhi liqonde ohlangothini olufanayo, ijubane lawo elisayiniwe lingangezwa ngqo.

Ngokwesibonelo:

3 m/s + 1 m/s = 4 m/s

Kodwa uma iziqondiso zihlukile, kudingeka ukwengeza i-vector.

6. Ijubane Elifanele Lelungu Lesakhiwo Yingxenye Ejwayelekile

Ngezakhiwo zamashubhu asogwini lolwandle, okunye okubalulekile okufanele kucatshangelwe ukuqondiswa kwamandla e-hydrodynamic maqondana nelungu.

Ijubane elisetshenziswa engxenyeni yokuhudula kufanele licatshangelwe ngokujwayelekile maqondanaingxenye yokugeleza evamile esilungwini sesakhiwo.

Lokhu kusho ukuthi ubukhulu bejubane lemvelo lonke akufanele lisetshenziswe ngokuzenzakalelayo kuwo wonke amalungu eshubhu athambekele noma aqonde ngendlela ehlukile.

Kwelungu elinombono ohlukile:

1. Nquma ijubane legagasi lendawo.
2. Nquma ijubane lamanje lendawo.
3. Zihlanganise ohlelweni oluhambisanayo lokuhlanganisa.
4. Nquma ijubane lokugeleza elihlobene.
5. Xazulula ijubane libe yinto evamile kulungu.
6. Sebenzisa ifomula efanele ye-hydrodynamic.

Uma ilungu lesakhiwo ngokwalo lihamba, inani elifanele lidinga futhi ukubalaisivinini esilinganiselwe phakathi kwamanzi nelungu.

7. Kungani Umehluko Uba Obalulekile Ethemini Yokudonsa KaMorison

Ukubaluleka kokuhlanganisa kahle ijubane lamagagasi kanye namanje kuba sobala lapho kuhlolwa i-Morison equation.

Kusilinda esiyindilinga esigxilile esingaphansi kokugeleza okuphambeneyo okunesilinganiso esisodwa, amandla okudonsa ngobude beyunithi angavezwa ngendlela elula kanje:

Fᴅ = ½ ρ Cᴅ DU |U|

kuphi:

• Fᴅ= amandla okuhudula ngobude beyunithi ngayinye
• ρ= ukuminyana kwamanzi
• Cᴅ= i-coefficient yokuhudula
• D= ububanzi belungu
• U= ijubane lokugeleza elilinganiselwe elisayinwe lijwayelekile kulungu

Isici esibalulekile yileli gama:

U |U|

Ngakho-ke, amandla okuhudula awaqondile maqondana nesivinini.

8. Isibonelo: Imithwalo Ehlukene Yamagagasi kanye Namandla Amanje vs. Ijubane Elihlanganisiwe

Cabanga ngecala elilula lapho:

• Ijubane lamagagasi =3 m/s
• Ijubane lamanje =1 m/s
• Zombili zisebenza ngendlela efanayo

Uma amandla okuhudula amagagasi kanye namanje ebalwa ngokwehlukana bese engezwa, amagama esikwele sejubane yilawa:

3² + 1² = 10

Uma ijubane lihlanganiswa kuqala futhi amandla okuhudula ebalwa:

(3 + 1)² = 16

Umehluko uvela egameni eliphambene:

2 × 3 × 1 = 6

Amanani10 kanye no-16 amagama ahlukaniswe ngesivinini, ngamayunithi angu-m²/s². Akuwona amandla ku-kN futhi awameleli umthwalo we-hydrodynamic ophelele ngokwawo.

Lesi sibonelo esilula sibonisa ukuthi kungani:

Ukubala ukuhudula kwamagagasi kanye nokwamanje ngokuzimela bese ufaka imiphumela ngokuvamile akufani nokubala ukuhudula kusuka kusivinini sendawo esihlanganisiwe.

Umehluko ubaluleke kakhulu lapho ijubane lamagagasi kanye namanje likhulu futhi lisebenza ngendlela efanayo.

9. Kwenzekani Uma Amagagasi Namanje Esebenza Ngezindlela Ezihlukile?

Isimiso esifanayo siyasebenza lapho amaza kanye nesivinini samandla kagesi kusebenza ngezindlela eziphambene, kodwa ijubane elisayiniwe kumele ligcinwe.

Ngokwesibonelo:

• Ijubane lamagagasi = +3 m/s
• Ijubane lamanje = −1 m/s

Ijubane elihlanganisiwe yileli:

U = +3 − 1 = +2 m/s

Igama elihambisanayo lokuhudula ngesivinini esiyisikwele lisekelwe ku:

U |U| = 2 × 2 = 4

Lokhu kubonisa ukuthi kungani kungalungile ukuphetha ngokuthi ukubala okuhlukile kuzohlala kukhiqiza umthwalo omncane.

Kuye ngokuthi isiqondiso kanye nesigaba samagagasi kanye nesivinini samanje sinjani, umehluko ungashintsha ngobukhulu kanye nesiqondiso.

10. I-Morison Equation Iphinde Ihlanganise Negama Elithi I-Inertia

Isibonelo esilula esingenhla sigxile kuphela engxenyeni yokuhudula.

Ifomula ephelele yeMorison iqukethe futhiigama elithi inertia elihlotshaniswa nokusheshisa kwamanzi nezinhlayiya.

Ngakho-ke, umthwalo we-hydrodynamic ophelele wamagagasi-wamanje awunakubonakaliswa nje ngokuthi umthwalo wonke ulingana nesivinini esiphindwe kabili.

Ingxenye yokuhudula ibonisa umphumela ongewona owe-linear ngokucacile, kuyilapho ingxenye ye-inertia kumele iphathwe ngokwendlela efanele yokwakheka kwe-hydrodynamic kanye ne-wave kinematics.

Lo mehluko ubalulekile lapho kuhunyushwa imiphumela yokuhlaziywa kwesakhiwo sasogwini.

11. Ukusebenzisana Kwamagagasi Namanje ku-SACS: Yini Onjiniyela Okufanele Bayihlole?

Uma kwenziwa amamodeli wemiphumela yamagagasi kanye namanje kuI-SACS, unjiniyela kufanele abheke ngale kwegama lesikhwama somthwalo.

Ibhokisi lomthwalo elibizwa ngokuthi“Igagasi + Umsinga”akuqinisekisi ngokwako ukuthi inqubo engokomzimba eyisisekelo ihlelwe ngendlela efanele.

Izici eziningana kufanele zihlolwe:

1. Ireferensi Yezinga Lamanzi

Qiniseka ukuthi okulandelayo kuchazwa ngokuhambisanayo:

• Izinga lamanzi anganyakazi
• Izinga lamanzi esiphepho
• Ukuphakama kwamagagasi
• Ukuphakama kwesakhiwo
• Ukuphakama kwereferensi yephrofayili yamanje

Ukubhekisela okuqondile okungaguquki kungabangela ukumepha kwamanje okungalungile.

2. Ukwelula Iphrofayili Yamanje

Hlola ukuthi iphrofayela yamanje iyi:

• Yeluliwe
• Kunwetshiwe
• Okuhlanganisiwe
• Kushintshwe ngolunye ushintsho

Indlela ekhethiwe kufanele ihambisane nendlela yokuklama efanele.

3. I-Wave Kinematics

Hlola ukuthi isofthiwe ikhiqiza kanjani ijubane lamagagasi kanye nokusheshisa.

Ukuguqulwa kwephrofayili yamanje kanye nokwelula i-wave-kinematic akufanele kuthathwe ngokuzenzakalelayo njengenqubo efanayo.

4. Isiqondiso Samanje Namagagasi

Hlola i-engeli ehlobene phakathi kokusabalala kwamagagasi kanye nesiqondiso samanje.

Ezimweni zamagagasi angewona ama-collinear kanye nezamanje, zombili izingxenye eziqondisayo zingathinta ukuhlaziywa.

5. Ijubane Elijwayelekile Lamalungu

Kwilungu ngalinye lesakhiwo, qinisekisa ukuthi kusetshenziswa ingxenye yokugeleza efanele maqondana nokuqondiswa kwelungu.

6. Isivinini Esilinganiselwe

Uma ukunyakaza kwesakhiwo kubalulekile, qinisekisa ukuthi ukwakheka kwe-hydrodynamic kusebenzisa ijubane elifanele lamanzi nelungu.

7. Izingxenye Zokudonsa Nezokungabi Namandla

Buyekeza iminikelo ehlukile yalokhu:

• Amandla okuhudula
• Amandla e-Inertia
• Amandla aphelele e-hydrodynamic

Ungachazi isibonelo sokuhudula kuphela njengesimele umthwalo ophelele we-Morison.

12. Isikhathi Esibonakalayo Samagagasi kanye Nejubane Lamanje Akufanele Kudideke

Enye inkinga ebalulekile ekuhlaziyweni kwasogwini yijubane lamanje elisetshenziswa ekulinganiseniisikhathi segagasi esibonakalayo.

Ugesi osetshenziselwa le njongo awufani ngempela nenani lamanje elishintshiwe kakade ngenxa yokuvinjelwa kwesakhiwo noma imiphumela yendawo.

Ngaphansi kwendlela ye-API okuxoxwe ngayo ngenhla, isikhathi segagasi esibonakalayo kufanele sihlolwe kusetshenziswaukusakaza kwamahhala okungaphazamiseki, kunokuba kube ugesi osuncishisiwe kakade ngenxa yokuvinjelwa kwesakhiwo.

Ezimweni zamagagasi angewona ama-collinear kanye namanje, ingxenye yamanje ehambisana nohlangothi lwamagagasi ibalulekile ekulinganisweni kwesikhathi samagagasi okubonakalayo.

Ngesikhathi esifanayo, iphrofayili yamanje esetshenziswa ekubalweni komthwalo we-hydrodynamic ingadinga ukumepha iphrofayili okufanele kanye nokuphathwa kwesiqondiso.

Ngakho-ke:

Inani lamanje eliguqulwe ngenhloso eyodwa yokuhlaziya akufanele lisetshenziswe ngokuzenzakalelayo kuzo zonke ezinye izinyathelo zokubala.

13. Ukubekwa Komthwalo Wesakhiwo Akufani Nokukhiqizwa Komthwalo Wemvelo

Umqondo obalulekile ekuhlaziyweni kwesakhiwo sasogwini lolwandle umehluko phakathiukukhiqizwa komthwalofuthiisikhundla sempendulo yesakhiwo.

Ngaphansi kwezimo ezifanele zesakhiwo eziqondile, izimpendulo zesakhiwo zingase zibekwe esikhundleni sazo.

Kodwa-ke, lokhu akusho ukuthi amandla e-hydrodynamic emvelo akhiqize lezo zimpendulo angabalwa ngokuzimela bese engezwa ngokulandelana.

Ngokwesibonelo:

Ijubane lamagagasi + ijubane lamanje → ijubane elihlanganisiwe lendawo → amandla e-hydrodynamic → impendulo yesakhiwo

kuhluke ngokuphelele ku:

Amandla wamagagasi + amandla amanje → impendulo yesakhiwo

lapho amandla e-hydrodynamic ngokwawo engaqondile maqondana nejubane.

Lo mehluko ubaluleke kakhulu ekulayisheni kwe-Morison drag.

14. Ukuhamba Komsebenzi Okusebenzayo Kokuhlaziywa Komthwalo Wamagagasi Namanje

Ngakho-ke, umsebenzi wobunjiniyela obusebenzayo ungafingqwa kanje:

Isinyathelo 1 — Setha Izinga Lamanzi

Chaza izinga elifanele lokubhekisela emanzini anganyakazi noma amanzi esiphepho bese uqinisekisa ukuthi zonke izindawo eziphakeme zisebenzisa idatha efanayo.

Isinyathelo 2 — Chaza Ubuso Begagasi

Nquma ukuphakama kwamagagasi okusheshayo endaweni kanye nesigaba esihlolwayo.

Isinyathelo 3 — Imephu Yephrofayela Yamanje

Nquma ijubane lamanje elihambisana nokuphakama okumanzi ngokushesha usebenzisa ukuguqulwa kwephrofayili yamanje okusebenzayo.

Isinyathelo 4 — Nquma i-Wave Kinematics

Bala ijubane lendawo elibangelwa yigagasi kanye nokusheshisa endaweni efanayo kanye nesigaba.

Isinyathelo 5 — Hlanganisa Amaza kanye Nejubane Lamanje

Yenza ukwengeza kwevektha ohlelweni oluhambisanayo lokuhlanganisa.

Isinyathelo 6 — Thola Ukugeleza Okuhlobene

Cabangela ukuqondisa kwamalungu kanye, lapho kufanele khona, ukunyakaza kwesakhiwo.

Isinyathelo 7 — Bala Amandla E-Hydrodynamic

Sebenzisa i-Morison efanele noma enye indlela yokwenza i-hydrodynamic.

Isinyathelo 8 — Hlola Izingxenye Eziqondisayo

Qinisekisa ukuthi izingxenye zejubane elijwayelekile neliqondile zisetshenziswe kulungu ngalinye lesakhiwo.

Isinyathelo 9 — Buyekeza i-SACS Output

Hlola izibikezelo eziyisisekelo kanye nobuningi bokukhipha esikhundleni sokuthembela kuphela kumagama e-load-case.

Isinyathelo 10 — Qinisekisa Ngokumelene Nezinga Elisebenzayo

Buyekeza izidingo ze-API ezifanele, imininingwane yephrojekthi, imibhalo yesofthiwe, kanye nezibikezelo zokuhlaziya.

15. Izinto Ezibalulekile Okufanele Uzicabangele

Ukwelashwa okufanele komthwalo wamagagasi kanye nowamanje ngokuyisisekelo kuyintoinkinga ye-kinematics yamanzi ngaphambi kokuba ibe inkinga yomthwalo wesakhiwo.

Izimiso ezibalulekile yilezi:

• Ijubane lamagagasi kanye namanje kufanele lihlolwe endaweni efanayo nangesikhathi esifanayo.
• Amaphrofayili amanje angadinga ukuguqulwa lapho indawo ekhululekile ngokushesha ihluka ezingeni lamanzi abhekiselwe kuwo.
• Ukwelulwa kwephrofayili yamanje kushintsha indawo yokulinganisa ijubane; akuyona nje into yokuphindaphinda ijubane elifanayo.
• Ijubane lamagagasi kanye namanje kufanele kuhlanganiswe njengezinto ezithwala umoya.
• Ingxenye yejubane evamile kwilungu lesakhiwo ibalulekile ekudonseni kweMorison.
• Ijubane elihlobene lamanzi nelungu kufanele licatshangelwe uma ukunyakaza kwesakhiwo kubalulekile.
• Ukuhudula kwe-Morison akuqondile ngoba kuncike ku-U|U|.
• Ukubala ukuhudula kwamagagasi kanye nokwamanje ngokwehlukana nokwengeza imiphumela ngokuvamile akufani nokubala ukuhudula kusuka kusivinini esihlanganisiwe.
• Igama elithi i-Morison inertia lidinga ukucatshangelwa okuhlukile futhi alimelwa yisibonelo esilula se-velocity-squared.
• Amanani amanje asetshenziselwa ukulinganisa isikhathi esibonakalayo akufanele adidaniswe ngokuzenzakalelayo namanani amanje avinjelwe noma aguquliwe asetshenziswa kwenye indawo.
• Ukwakheka kwempendulo eqondile akusho ukuthi imithwalo ye-hydrodynamic yemvelo ingakhiqizwa ngokuzimela futhi yengezwe ngokulandelana.
• Amagama e-load-case e-SACS kuphela awanele ukuqinisekisa ukunemba ngokomzimba kokuhlaziywa kwe-wave-current.

Isiphetho

Inkinga ebalulekile ekuhlanganisweni komthwalo wamagagasi namanje akukhona nje ukuthi kungangezwa yini amandla amabili.

Umbuzo obaluleke kakhulu uthi:

Amanzi ahamba kanjani ngempela azungeze ilungu lesakhiwo endaweni efanayo nangesikhathi esifanayo?

Ukwelula kwephrofayili yamanje kunqumalapho ijubane lamanje kufanele litholakale khona.

Inhlanganisela yevektha inqumaindlela amaza kanye nesivinini samanje esisebenzisana ngayo.

I-equation kaMorison inqumaindlela ukunyakaza kwamanzi okubangelwayo okuguqulwa ngayo kube amandla e-hydrodynamic.

Lezi zinyathelo zixhumene ngokomzimba futhi, ngokuvamile, azikwazi ukushintshwa ngokumane wengeze imiphumela emibili yomthwalo wemvelo ebalwe ngokuzimela.

Ukuze kuhlaziywe isakhiwo esinokwethenjelwa ogwini lolwandle, onjiniyela kufanele babuyekeze uchungechunge oluphelele:

Izinga lamanzi → Iphrofayili yamanje → I-kinematics yamagagasi → Inhlanganisela yejubane lamagagasi → Ijubane lelungu elihlobene → Amandla e-hydrodynamic → Impendulo yesakhiwo

Le ndlela inikeza isisekelo esivumelana kakhulu ngokomzimba sokuhlaziya izakhiwo zamashubhu asogwini ezibhekene nomthwalo wamagagasi ahlanganisiwe kanye nowamanje.

imibuzo ejwayelekile ukubuzwa

Ingabe imithwalo yamagagasi kanye neyamanje ingamane yengezwe ndawonye?

Akunjalo kuzo zonke izimo. Ngokulayishwa kwe-Morison drag, amaza kanye nesivinini samanje kufanele kuhlanganiswe ngaphambi kokubala i-hydrodynamic drag ngoba amandla okudonsa ancike ngokungaqondile ejubaneni.

Kuyini ukwelula iphrofayili yamanje?

Ukwelula iphrofayili yamanje kuyindlela yokudweba iphrofayili yejubane lamanje langempela kukholomu yamanzi emanzi ngokushesha lapho ukuphakama kwendawo ekhululekile kushintsha ngenxa yamagagasi.

Ingabe ukwelula kwamanje kusho ukuphindaphinda ijubane ngesici sesikali?

Cha. Ngokuvamile, ukwelula kushintsha ukuphakama lapho ijubane lamanje litholakala khona kuphrofayili yokuqala. Akufanele kuhunyushwe njengokumane kuphindaphindwe ijubane ngalinye ngento evamile.

Uyini umehluko phakathi kwe-wave kinematics kanye nokwelula iphrofayili yamanje?

I-kinematics yamagagasi ichaza ijubane kanye nokusheshisa okuhambisana nokunyakaza kwamagagasi. Ukwelula iphrofayili yamanje kushintsha indlela iphrofayili yamanje ethile emelelwa ngayo ngaphakathi kwekholomu yamanzi esheshayo. Zihlobene nezinqubo ezahlukene zomzimba.

Kungani amandla okudonsa eMorison eshintsha kakhulu lapho kuhlanganiswa igagasi nomsinga?

Ngoba isikhathi sokuhudula sincike kwijubane elihlobene elisayiniwe nge-U|U|. Ngakho-ke, ijubane elihlanganisiwe lingakhiqiza imigomo ewelayo engekho lapho amandla okuhudula amagagasi namanje ebalwa ngokuzimela.

Ingabe isiqondiso samagagasi kanye nomsinga sibalulekile?

Yebo. Ijubane lamagagasi kanye namanje kufanele liphathwe njenge-vectors. Isiqondiso sazo esihlobene sithinta ijubane elivelayo kanye namandla e-hydrodynamic.

Ingabe ijubane lamanzi eliphelele kufanele lisetshenziswe kuwo wonke amalungu esakhiwo?

Akunjalo ngempela. Kumalungu amancane ane-tubular, ingxenye yejubane evamile kumalungu ibaluleke kakhulu ekudonseni okuphambene. Ngakho-ke ukuqondiswa kwamalungu kufanele kucatshangelwe.

Ingabe i-SACS ingasingatha ngokuzenzakalelayo ukusebenzisana kwamagagasi namanje?

Ukwelashwa okuqondile kuncike enguqulweni ye-SACS, izilungiselelo zokuhlaziya, izincazelo zokufaka, kanye nendlela ekhethiwe. Onjiniyela kufanele baqinisekise imibhalo yesofthiwe efanele kanye nomphumela kunokuthembela kuphela egameni lekesi lomthwalo.

Ingabe inhlanganisela yomthwalo we-wave-current iyafana nokubekwa kwe-structural load superposition?

Cha. Impendulo yesakhiwo ingase ibekwe ngaphansi kwezibikezelo ezifanele eziqondile, kodwa ukukhiqizwa kwamandla e-hydrodynamic kungaba okungeyona i-linear. Ngakho-ke, ukukhiqizwa komthwalo wemvelo kanye nokubekwa kwempendulo yesakhiwo kufanele kuthathwe njengemibono ehlukile.