عنوان

Calculations of fluid flow and heat transfer in expanding ducts

Number

TLpq230853570

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

Calculations of fluid flow and heat transfer in expanding ducts

General Material Designation

[Thesis]

First Statement of Responsibility

S. Z. Shuja

Name of Publisher, Distributor, etc.

King Fahd University of Petroleum and Minerals (Saudi Arabia)

Date of Publication, Distribution, etc.

1993

Specific Material Designation and Extent of Item

190

Dissertation or thesis details and type of degree

M.S.

Body granting the degree

King Fahd University of Petroleum and Minerals (Saudi Arabia)

Text preceding or following the note

1993

Text of Note

A Numerical study is performed examining turbulent separated flow and heat transfer characteristics in axisymmetric expanding ducts, with emphasis to the annular diffuser geometry. The method is based on the fully conserved control volume representation of fully elliptic Navier-Stokes and Energy equations in body-fitted orthogonal curvilinear coordinate system. Turbulence is simulated via the two-equation (usd\kappa\epsilonusd) model. The presented results consist of computed velocity and streamline distributions, the kinetic energy of turbulence, and local and average Nusselt distributions. Systematic variations are made in the Reynolds number (usd6\times10\sp36\times10\sp5usd) and the outer wall half angles (7-20, 90). The study was further extended to flows with a range (0.0-0.9) of inlet swirl. Comparison with available experimental data shows that the method with the utilized turbulence closure model and the discretization scheme reproduce the essential features of various diffuser heat transfer and fluid flow effects observed in the experiments.

Applied sciences

Mechanical engineering

S. Z. Shuja

Electronic name

p

[Thesis]

276903

a

Y