
dasha maarpu padaarthaala kosam ganana dravam dynamics

dasha maarpu padaarthaala (pcms) kosam ganana dravam dynamics (cfd) modeling mariyu anukarana anedi pcms paniteeru mariyu pravartananu vislaeshimchae oka saanketikata. sii. eff. dii namuunaalu gaali naanhyata, sahaja ventilation mariyu stratified ventilation, teliade saktula dwara praarambhinchabadina gaali pravaham mariyu pcmsto anusandhaaninchabadina vyavasthala kosam ushnograta sthalaanni adhyayanam chesi vislaeshimchadamloe vijayavantamayyaayi. chadunaina palakalu, cylinderlu ledhaa vaarshika gottalu, rekkalu, sthuula mariyu suukshma-encapsulationlu vanti vividha aakaaraala containerlu vanti saadhaarana akaaraalu tarachugaa adhyayanam cheyadaaniki sii. eff. dii. softwarelalo roopondinchabadataayi.
saadhaaranamgaa sii. eff. dii. namoonaalalo saadhaaranamgaa reynold yokka sagatu navier-stokes sameekaranam (rans) modeling mariyu pedda eddie simulation (less) untaayi. dravyarashi, vegam mariyu shakti (navier-stokes) yokka parirakshana sameekaranaalu saralikrutam, vivechanaatmakam mariyu vaayu peedanam, vegam mariyu ushnograta yokka kshetra pampinheeki vivaranaatmaka parishkaranni pondadaaniki parimita parimaanaalaku vartimpajeyabadataayi.
paalaka sameekaranaalu.
dravyarashi sameekaranam.
ekkada
shakti sameekaranam.
ekkada
navier stokes sameekaranam.
suutram _ 3
ikkada f anedi gurutvakarshana ledhaa apakendra shakti vanti "itara" shareera saktulanu (prati unit valuemku) suuchistumdi. kotha ottidi padam suutram _ 4 suutram _ 5 avutundi, ikkada suutram _ 6 anedi vector laplasian.
bousinsk eddie-viscosity ujjaayimpu.
ekkada
oohagaanaalu.
saadhaaranamgaa upayoginche anchanaalu
dasha maarpu namuunaa.
dasha maarpu yokka rendu pradhana ushna lakshanaalu entholpy-ushnograta sambandham mariyu ushnograta hysteresis. vividha padaarthaala misramaalu anae vaastavam kaaranamgaa pcmlu vividha entholpy ushnograta sambandhaalanu kaligi untaayi, conny swachchamaina pcmlu marinta sthaanika sambandhaanni kaligi untaayi, veetini entholpy mariyu dasha maarpu ushnograta kosam oke viluvala dwara anchanaa veyavachu.
hysterisis anedi vividha ushnograta shrenulalo mariyu vividha enthaalpeelatho pcm karigipoyi gaddakattadaaniki kaaranamayye drugvishayam, dheeni phalitamgaa kariginchadaaniki mariyu gaddakattadaaniki ververu ushnograta-entholpy vakrata erpadutundi. hysterisis anedi padaartham yokka rasayana mariyu gathi lakshanaalaku sambandhinchinadi.
vaanijya cfd sankethaalalo saadhaaranamgaa upayoginche entholpy-porocity modal, leanier entholpy-temperature sambandhaanni oohistundi mariyu hysteresisnu vismaristundi.[8]
pratyaamnaayam entholpy-porocity paddhatini upayoginchadam. pcm terachaapalu mariyu pcm plate-finn unitnu anukarinchadaaniki upayoginchinappudu, idhi prapancha antariksha ushnograta paramgaa sahetukamaina ushnograta anchanaanu utpatti chestundi. ayithe, samayampai aadhaarapadina pcm mariyu sthaanika goda mariyu gaali ushnogratalu aasakti kaliginche taatkaalika anukaranalalo doshaalu unnaayi. hysterisis mariyu vividha entholpy-ushnograta sambandhaanni pariganinche muula padaalanu upayoginchadam dwara idhi mugisindi. [9] [10]
konnisaarlu sii. eff. dii-dem modal kooda upayoginchabadutundi. vivikta ghanapadaarthaalu ledhaa kanaala dasha kadalikanu vivikta moolakam paddhati (dem) dwara pondavacchu, idhi prati kanaaniki neuton yokka chalana niyamaalanu vartimpajestundi mariyu nirantara dravam yokka pravahanni sthaanika sagatu navir-stokes sameekaranaala dwara vivaristaaru, veetini saampradaaya ganana dravam dynamics (sii. eff. dii) dwara parishkarinchavacchu.cfdemcoupling (dcs computing gmbh) anedi cfd-Dem coupling kosam atuvanti open soars toolboxlo okati.
prakriya.
paalaka sameekaranaalu spashtamaina parimita parimaana paddhatini upayoginchi vivechinchabadataayi. vaega-peedanam kalayika anedi binna dasha paddhatini avalambinchadam dwara parishkarinchabadutundi. entholpy paddhatini avalambinchadam anedi interfaces tracking paddhatiki badulugaa sthira gridto panicheyadaaniki anumatistundi.
ghana padaartham yokka unikini namuunaa cheyadaaniki uddesinchina vegavantamaina muulam padam ghana padaartham mariyu drava padaarthaalanu kaligi unna niyantrana parimaanaalalo matrame avasaram, swachchamaina ghana padaartham parimaanaalalo kaadu.
muula padam gunakam (luu) yokka tudi roopam "meshi john" (mishrama ghana mariyu drava sthithulu unna chota) loe pravaham yokka pravartana kosam sweekarinchina ujjaayimpupai aadharapadi untundi. ayithe, sthiramaina dasha maarpu ushnograta vishayamlo, ghana-drava interfaces anantamaina vedalputho undaali (idhi mana anukaranalalo oka niyantrana valume vedalpu kante sannaga undakapoyina); anduvalla, muulam padam kosam upayoginche suutreekarana bhouthika konamlo chaalaa mukhyamainadi kaadu, idhi ekkuvagaa ghana niyantrana valuemlalo vegaanni sunnaki teesukuraavadaaniki mariyu valuemlo swachchamaina dravaanni kaligi unte adrushyam cheyadaaniki nirvahinche varaku.[11]
applications.
ushna badilee vidhanam, sthireekarana mariyu draveebhavana prakriya, ushnograta profile pampinhee mariyu gaali pravaham yokka anchanaanu ardham chesukovadaniki pcm vyavastha yokka namuunaa mariyu anukarana kosam vividha cfd sankethaalu [1-3] upayoginchabaddaayi. pcm integrated system yokka pravartananu anchanaa vese saadhyatanu prasamsimchadaaniki vividha vaanijya packagelu cfd vislaeshanhatoe jatacheyabaddaayi.
sameekarinchina ushna shakti nilvalo pcm yokka anukarana ushna badilee pravartana, charging prakriya samayamlo cfd modeling dwara vijayavantamgaa nirvahinchavacchu [4] multiface, 2-dimensional pressure-aadhaarita namoonaalo ushnograta pampinhee kosam parishkarinchadaaniki valume-off-fluid paddhatini upayogistaaru. idhi ushna badilee vidhanam, draveebhavana samayam mariyu 12.1 nii upayoginchi charging prakriyaloo nirmaanam yokka prabhaavaaniki kaaranamavutundi. upayoginche paalaka sameekaranaalu dravyarashi marpidi mariyu konasagimpu sameekaranaalu.
samagra, pakshika-1dii gananalu nivedinchabaddaayi [5] pradhanamgaa sii. eff. dii anukarananu upayoginchi prasarana-aadhipatya samasya kosam. moodu jyaamitulalo (cubic, sthuupaakaara mariyu golaakaara), golaakaara gulika ushna badilee dravaaniki garishta vaedini kaligi untundani nivedinchabadindi. sendriya pii. sii. emm. la kante uppu hydrates aadhaarita pii. sii. emm. luu uttama empika anie kooda nirdhaarinchabadindi.
dasha maarpu padaarthaalu module yokka shell bhaagamlo mariyu gottala dwara gaali pravaham kosam maargamlo unde vidhamgaa vyavasthalu abhivruddhi cheyabadataayi. vyavasthalo ushna badilee dravam yokka pravaham mariyu ushnograta vaividhyaanni vislaeshimchadaaniki samyoga sthira sthithi cfd ushna badilee vislaeshanha nirvahinchabadindi. idhi icchina sarihaddu paristhitulaku jyaamiteeya mariyu pravaaha paaraamitula empika mariyu anchanaa, pcm sthireekarana lakshanaalaku maargam sugamam chestundi.
shell mariyu tube pcmla prabhavanni marinta penchadaaniki tulanaatmaka vislaeshanha kooda cfd vislaeshanha dwara saadhinchabadindi [7]. ververu aakruteekaranalato kuudina vividha sii. eff. dii namuunaalu, ushna badilee dravam (hetch. tii. eff) thoo oka gottampai ponduparachabadina pins, gottam chuttoo pcm, pins kuu badulugaa ponduparachabadina rekkalu mariyu gottampai rekkala yokka vividha aakruteekaranalu vantivi vislaeshanha cheyabadataayi, ansis kodnu upayoginchadam dwara.