Results 111 to 120 of about 101,417 (300)
Analysis of unswept and swept wing chordwise pressure data from an oscillating NACA 0012 airfoil experiment. Volume 1: Technical Report [PDF]
The unsteady chordwise force response on the airfoil surface was investigated and its sensitivity to the various system parameters was examined. A further examination of unsteady aerodynamic data on a tunnel spanning wing (both swept and unswept ...
Carta, F. O., St.hilaire, A. O.
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Subsonic flutter analysis addition to NASTRAN [PDF]
, 1973 A subsonic flutter analysis capability has been developed for NASTRAN, and a developmental version of the program has been installed on the CDC 6000 series digital computers at the Langley Research Center.
Doggett, R. V., Jr., Harder, R. L.
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Local Polynomial Regression and Filtering for a Versatile Mesh‐Free PDE Solver
International Journal for Numerical Methods in Fluids, EarlyView.A high‐order, mesh‐free finite difference method for solving differential equations is presented. Both derivative approximation and scheme stabilisation is carried out by parametric or non‐parametric local polynomial regression, making the resulting numerical method accurate, simple and versatile. Numerous numerical benchmark tests are investigated for
Alberto M. Gambaruto
wiley +1 more source
Numerical prediction analysis of propeller bearing force for full-scale hull–propeller–rudder system
International Journal of Naval Architecture and Ocean Engineering, 2016 The hybrid grid was adopted and numerical prediction analysis of propeller unsteady bearing force considering free surface was performed for mode and full-scale KCS hull–propeller–rudder system by employing RANS method and VOF model.
Chao Wang, Shuai Sun, Liang Li, Liyu Ye
doaj +1 more source
Aerodynamic stability analysis of NASA J85-13/planar pressure pulse generator installation [PDF]
A digital computer simulation model for the J85-13/Planar Pressure Pulse Generator (P3 G) test installation was developed by modifying an existing General Electric compression system model.
Chung, K., Hosny, W. M., Steenken, W. G.
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Unsteady Propulsion by an Intermittent Swimming Gait
, 2017 Inviscid computational results are presented on a self-propelled swimmer modeled as a virtual body combined with a two-dimensional hydrofoil pitching intermittently about its leading edge.
Akoz, Emre, Moored, Keith W.
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Fast Calculation for the Flow and Heat Transfer of Tempered Fractional Maxwell Viscoelastic Fluid
International Journal for Numerical Methods in Fluids, EarlyView.This study develops a tempered fractional Maxwell model to simulate unsteady thermal flow in viscoelastic fluids, capturing key rheological behaviors. A fast SOE‐based algorithm is proposed to improve the computational efficiency of the numerical scheme. Results reveal how key parameters influence fluid motion and heat transfer, demonstrating the model'
Yi Liu, Mochen Jiang, Libo Feng
wiley +1 more source
Unsteady Hydrodynamic Forces on a Lifting Body
Journal of the Society of Naval Architects of Japan, 1990 A numerical method has developed to analyze unsteady hydrodynamic forces of 3D lifting surfaces of arbitrary planform, in which velocity potential is expressed by the doublet distribution over wing surface and the wake. The wing surface is divided into a number of meshes and the strength of the doublet on each mesh is assumed to be constant which makes
Yusaku Kyozuka +2 more
openaire +3 more sources
CFD Analysis of Dual‐Layer PCM Roofs for Thermal Mitigation in Residential Buildings
Heat Transfer, EarlyView.ABSTRACT This study presents a computational fluid dynamics analysis of dual‐layer phase change material (PCM) roofs for passive cooling in residential buildings under the hot and humid climate of Bangladesh. A three‐dimensional transient model was developed in ANSYS Fluent using the enthalpy–porosity approach to simulate coupled heat conduction ...
Mohammad Junaid +6 more
wiley +1 more source
Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review
Heat Transfer, EarlyView.ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira +2 more
wiley +1 more source