Naaftada Shidaalka Injector 456-3493 ee Caterpillar C9.3 CAT Truck Engine Parts

Cavitation firfircoon gudaha duritaanka naaftada waxqabadka sare - tijaabo iyo baaritaanka CFD (qayb 1)

Abstract.

Isku darka jilida iyo farsamooyinka tijaabada gaarka ah ayaa loo adeegsaday si loo baaro socodka ku meel gaadhka ah iyo ifafaalaha cavitation ee aaladda kontoroolka gudaha mishiinka naaftada waxqabadka sare leh. Dabeecadda cavitation firfircoon waxaa lagu qabsaday qaab hufan oo baaxad weyn, kaas oo markaas loo isticmaalay in lagu horumariyo oo lagu ansixiyo qaabka CFD qalalaasaha sare leh oo leh jilitaanka Eddy Large. Farsamooyinkan waxaa loo isticmaalaa gudaha Delphi si loo helo aragti iyo kor loogu qaado waxqabadka duritaanka ee cabbirka dhabta ah.

1 Hordhac

Injector-ka naaftada ayaa lagu doodi karaa inuu yahay shayga ugu muhiimsan ee lagu gaaro waxqabadka matoorka qaaliga ah ee qiiqa sii daaya. Sidaa darteed waxay raacdaa in cirbadaha matoorada waxqabadka sare leh ay tahay in si sax ah loo xakameeyo. Natiijo ahaan, mashiinnada xakamaynta hawo-mareenka iyo dariiqyada waa in loo qaabeeyey oo la soo saaray si sax ah oo sarreeya, iyo fahamka habdhaqankooda aasaasiga ah waxay siin doontaa qayb muhiim ah hagaajinta iyo habraaca hagaajinta. Delphi waxay isticmaashaa isku darka jilida iyo farsamooyinka tijaabada gaarka ah si ay u baarto sifooyinka socodka qalabkan.

Sida dhammaan durayaasha cusub, Injector Naaftada Waxqabadka Sare ee horumarinta ee Delphi wuxuu ahaa mawduuca waxqabadyo jilid badan. Danta gaarka ah ee warqadan, ayaa ah baaritaannada CFD ee hawlaha xakamaynta haydarooliga.

Cavitation socodka waa mawduuc caan ah oo ku jira qalabka naaftada lagu duro; Waayo-aragnimadii hore ee tijaabadii waxay muujisay in halbeegga warshadaha ee Reynolds-Averaged Navier-Stokes (RANS) ay awoodi wayday inay bixiso natiijooyin sax ah habdhaqanka cavitation firfircoon. Sidaa darteed marka lagu daro shaqada CFD, moodooyinka waaweyn (LSM) ee qaybaha kala duwan ee hawlaha xakamaynta hydraulic ayaa loo xilsaaray. Isticmaalka moodooyinka hufan ee alwaaxyada kontoroolka iyo dariiqyada ee miisaanka aadka u kordhay waxay awood u siinaysaa faham horumarsan oo ku saabsan waxqabadka hydraulic [1] taas oo aan si sahlan lagu gaari karin farsamooyinka kale. Waxqabadka haydarooliga ayaa si ku filan u madax banaan dhammaan cabirrada si uu u noqdo mid faa'iido leh sida qalab horumarineed [2].