Določitev količnika upora kvadra z Jones in Betz merilnima metodama

zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo

David Pekolj (Author), Viktor Šajn (Mentor)

Abstract

Za mnoge inženirske namene je potrebno vsaj približno poznati koeficiente zračnega upora najrazličnejših predmetov. Vrednost koeficienta lahko v vetrovniku ugotovimo z dotičnimi metodami z nosilcem, ali pa z nedotično metodo meritve tlakov pred in za predmetom. Teoriji po Betzu in Jonesu nam iz teh meritev omogočata določitev približne vrednosti koeficienta zračnega upora, ki se od teoretičnih vrednosti razlikujejo v našem primeru do +/- 5%.

Keywords

diplomske naloge;zračni upor;metoda po Betzu;metoda po Jonesu;meritve v vetrovniku;empirični izračun koeficienta upora;

Data

Language:	Slovenian
Year of publishing:	2018
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[D. Pekolj]
UDC:	533.6.013.12(043.2)
COBISS:	16415771
Views:	630
Downloads:	101
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Determination of parallele piped drag coeficiant with Jones and Betz measurement methods
Secondary abstract:	To be able to perform various engineering procedures, we should at least approximately know drag coefficients of different objects. In the wind tunnel, the coefficient can be measured with converge method using a carrier, or with untouchable method of measuring pressure in front of and behind the object. Betz and Jones Theory enables us to pinpoint approxinate drag coefficients from these results, which in our case differ from theoretical results for +/- 5%.
Secondary keywords:	drag;Betz method;Jones method;wind tunnel measurements;empirical calculation of the drag coefficient;
Type (COBISS):	Final paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XII, 33 f.
ID:	10959840