Numerična simulacija ohlajanja ulitka

diplomsko delo

Mitja Ivančič (Author), Jure Ravnik (Mentor), Leopold Škerget (Co-mentor)

Abstract

Diplomska naloga predstavlja numerični izračun ohlajanja ulitka. Analiza je bila narejena s programskim paketom ANSYS CFX – 13.0. Izračunali sta se dve stanji, in sicer časovno neodvisno ter časovno odvisno stanje. Za hladilni medij se je uporabil zrak. Namen je bil teoretično in s pomočjo numerične simulacije izračunati potreben čas za ohlajanje ulitka. Rezultati pokažejo, da analitični izračun poda pregrobo oceno potrebnega časa ohlajanja ulitka. Časovno odvisna numerična simulacija pokaže, da je čas ohlajanja daljši od izračunanega. Ugotovimo, da se volumen ulitka ohlaja enakomerno, in ne opazimo kritičnih točk.

Keywords

prenos toplote;ohlajnjae;turbulentni modeli;numerična simulacija;

Data

Language:	Slovenian
Year of publishing:	2012
Source:	Maribor
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	[M. Ivančič]
UDC:	621.74:536.332(043.2)
COBISS:	16654358
Views:	1643
Downloads:	148
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Numerical simulation of cooling of a cast
Secondary abstract:	The diploma thesis presents the numerical simulation of cooling of a cast. The calculation was performed with ANSYS CFX – 13.0.The calculation was performed for two states, first for a steady state and second for a transient state. The cooling fluid was air. The purpose of the analysis was to determine the theoretical time for cooling of the cast and to determine the cooling time with the help of the numerical simulation. Results show, that the analytical calculation results are not accurate enough. The transient numerical simulation results show, that the cooling time of the cast is longer than in the analytical calculation. The simulation also shows that the cooling of the cast through the volume is even and we don’t encounter any critical points.
Secondary keywords:	heat transfer;cooling;turbulent models;numerical simulation;
URN:	URN:SI:UM:
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za strojništvo
Pages:	X, 51 f.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;engineering;technology in general;inženirstvo;tehnologija na splošno;mechanical engineering in general;nuclear technology;electrical engineering;machinery;strojništvo;mechanical technology in general: processes;tools;machines;equipment;obdelava z deformacijo;obdelava brez odrezovanja;toplotna obdelava;mathematics;natural sciences;naravoslovne vede;matematika;physics;fizika;heat;thermodynamics;statistical physics;termodinamika;toplota;statistična fizika;effect of bodies on heat radiation;
ID:	1026752