Search
CSV
RISExperimental and Computational Study of Heat/Mass Transfer and Flow Structure for Four Dimple Shapes in a Square Internal Passage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Mass/heat transfer measurements are made using the naphthalene sublimation method in a square internal passage where one wall has a single dimple. Four types of dimple shapes are studied: square, ...
Heat Transfer at High Rotation Numbers in a Two-Pass 4:1 Aspect Ratio Rectangular Channel With 45deg Skewed Ribs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat transfer measurements are reported for a rotating 4:1 aspect ratio (AR) coolant passage with ribs skewed 45deg to the flow. The study covers Reynolds number (Re) in the range of ...
Effect of Impeller Speed Perturbation in a Rushton Impeller Stirred Tank
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flow inside an unbaffled Rushton-impeller stirred tank reactor (STR) is perturbed using a time dependent impeller rotational speed. Large eddy simulation (LES) revealed that the perturbation ...
Large Eddy Simulation of Premixed Combustion With a Thickened-Flame Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A thickened-flame (TF) modeling approach is combined with a large eddy simulation (LES) methodology to model premixed combustion, and the accuracy of these model predictions is evaluated by ...
Predictions of a Film Coolant Jet in Crossflow With Different Turbulence Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study investigates the performance of several existing turbulence models for the prediction of film coolant jet in a crossflow. Two-equation models employing k–ε and k–ω closures, broadly ...
An Experimental Study of Lean Blowout With Hydrogen-Enriched Fuels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Lean premixed combustion is widely used to achieve a better compromise between nitric oxide (NOx ) emissions and combustion efficiency (related to CO levels). However, combustor operation near ...
Computations of Turbulent Flow and Heat Transfer Through a Three-Dimensional Nonaxisymmetric Blade Passage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The design of a three-dimensional nonaxisymmetric end wall is carried out using three-dimensional numerical simulations. The computations have been conducted both for the flat and contoured end ...
Flow and Heat Transfer in an Internally Ribbed Duct With Rotation: An Assessment of Large Eddy Simulations and Unsteady Reynolds-Averaged Navier-Stokes Simulations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Large eddy simulations (LES) and unsteady Reynolds averaged Navier-Stokes (URANS) simulations have been performed for flow and heat transfer in a rotating ribbed duct. The ribs are oriented ...
Large Eddy Simulation of Film Cooling Flow From an Inclined Cylindrical Jet
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Predictions of turbine blade film cooling have traditionally employed Reynolds-averaged Navier-Stokes solvers and two-equation models for turbulence. Evaluation of several versions of such models ...
Influence of Crossflow-Induced Swirl and Impingement on Heat Transfer in a Two-Pass Channel Connected by Two Rows of Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Detailed heat transfer distributions are presented inside a two-pass coolant square channel connected by two rows of holes on the divider walls. The enhanced cooling is achieved by a combination ...