2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Npaj tis swept tis sweeping tis muaj cov nyhuv ntawm kev txo cov curvature ntawm lub cev raws li pom los ntawm cov airflow, los ntawm lub cosine ntawm lub kaum sab xis ntawm cheb. Piv txwv li, ib lub tis nrog 45 degree cheb yuav pom qhov txo qis ntawm qhov curvature mus rau txog 70% ntawm nws tus nqi ncaj nraim. https://en.wikipedia.org › wiki › Swept_wing
Swept wing - Wikipedia
yog qhov kev npaj ntau tshaj plaws rau kev kub ceev (transonic thiab supersonic) dav hlau dav hlau. … Nyob rau hauv lub davhlau ya nyob twg, ib tug swept tis tso cai rau tus Critical Mach Number ntau dua ib tug ncaj tis ntawm zoo xws li Chord thiab Camber. Qhov no ua rau lub ntsiab kom zoo dua ntawm tis sweep uas yog ncua qhov pib ntawm nthwv dej luag.
Vim li cas F 14 tis swept rov qab?
Kev cheb lub tis rov qab tuaj yeem confuse tus yeeb ncuab los ntawm kev muab qhov qhia tsis tseeb ntawm F-14 airspeed. Tab sis nws kuj tau muab kev nqa tsawg dua thiab kev ua haujlwm tsawg dua, yog li nws yog "tactic" lossis kev ua kom yuam kev uas yuav siv tau zoo heev."
Vim li cas ho tsis xa tis swept?
Txhua yam ntxhiab tis zoo li tsis ruaj khov hauv lub rooj muag khoom, txij li cov lus qhia ntawm lub tis thawj zaug ua rau lub suab nrov zuj zus tuaj thiab ua rau rov qab nyuaj. Cov nyhuv no tsis tshua muaj txiaj ntsig nrog rau pem hauv ntej cheb vim tias qhov kawg rov qab nqa ntau dua thiab muab kev ruaj ntseg.
Puas swept tis ruaj khov dua?
Wing cheb yuav pab txhawb nqa kev ruaj ntseg sab nraud raws li daim duab 146 qhia. Thaum aLub dav hlau swept-tis yog sidelipping, lub tis mus rau lub sidelip yuav muaj kev nrawm dua li ib txwm rau lub tis ua ntug tshaj lub tis deb ntawm lub sidelip.
Qhov zoo ntawm swept tis yog dab tsi?
Nyob rau hauv lub davhlau ya nyob twg, lub tis swept tso cai rau tus lej Critical Mach ntau dua li lub tis ncaj ntawm Chord thiab Camber. Qhov no ua rau lub ntsiab kom zoo dua ntawm tis sweep uas yog ncua qhov pib ntawm nthwv dej luag. Ib tug swept tis yog optimised rau kev kub ceev davhlau.
Pom zoo:
Vim li cas tus ntxiab thiaj tau tis tis?
Txo cov tis txo qis qhov siab ntawm Spitfire tab sis nce tus nqi yob, ua rau nws ua tau ntau dua ntawm qhov siab qis. … Clipped tis tsis yog ib qho kev hloov pauv uas ua rau Spitfire tis duab. Cov lus qhia txuas ntxiv kuj tau siv rau kev ua haujlwm siab.
Puas rov tuav pov hwm rov qab xav tau cov neeg tuav pov hwm rov qab?
Cov tuam txhab tuav pov hwm rov qab feem ntau yuav rov ua pov hwm lawv tus kheej, lub sij hawm hu ua retrocession. Ntau txoj cai tau nthuav tawm ntawm ntau tus neeg tuav pov hwm rov qab. Nyob rau hauv rooj plaub no, qhov kev sib pauv yuav koom nrog tus thawj coj rov tuav pov hwm uas yuav sib tham txog cov ntsiab lus ntawm txoj cai uas lwm tus neeg tuav pov hwm rov qab yuav koom nrog.
Yuav ua li cas hawks tis rov qab?
Vim tias nws cov tis yog nws qhov quirk, txawm tias nws lub cev rov zoo los nws cov tis tau hu nkauj tag. Muaj caij nyoog lawv tuaj yeem rov qab los, txawm li cas los xij, yog tias nws cov plaub rov tsim dua lawv tus kheej tom qab siv. Yawg Hawks tis yuav loj tuaj BNHA?
Vim li cas thiaj li rov qab los ntawm Galveston tseem ceeb rau lub koom haum?
Kev Sib Tw ntawm Galveston yog kev sib ntaus sib tua hauv nkoj thiab av ntawm Asmeskas Kev Tsov Rog Thoob Ntiaj Teb, thaum Confederate rog Confederate rog Confederate States Army, kuj hu ua Confederate Army los yog cov tub rog yav qab teb, yog cov tub rog av quab yuam ntawm Confederate States of America (feem ntau hu ua Confederacy) thaum lub sij hawm American Civil War (1861-1865), tawm tsam Teb Chaws Asmeskas cov tub rog txhawm rau txhawb nqa lub koom haum ntawm … https:
Vim li cas thiaj rov xa rov qab sai sai?
Kev xa rov sai sai yog kev hloov kho rau qhov kev txwv tsis pub muaj kev sib tsoo. Raws li nyob rau hauv Jacobson tus ceev retransmit algorithm, thaum tus neeg xa khoom tau txais 3rd duplicate ACK, nws xav tias lub pob ntawv ploj lawm thiab rov xa cov pob ntawv ntawd yam tsis tau tos lub sijhawm rov xa rov qab tas sij hawm.
