Results 181 to 190 of about 5,070,033 (225)

Flow Past Heated Bluff Bodies

2012
Wakes behind heated cylinders, circular and square, have been experimentally investigated at low Reynolds numbers. The electrically heated cylinder is mounted in a vertical airflow facility such that the buoyancy aids the inertia of the main flow. The dimensionless parameters, namely, Reynolds number and Richardson number, are varied to examine flow ...
Pradipta Kumar Panigrahi, Krishnamurthy Muralidhar   +1 more
openaire   +1 more source

On bluff body flame stabilization

Applied Scientific Research, 1961
Several aspects of bluff body flame stabilization are discussed in terms of a theory which focuses attention on the initial mixing region between cool combustible and hot combustion products. Some experiments by Broman and Zukoski on flame stabilization in a “deflected jet” are correlated in terms of the theory. The “characteristic time” of Zukoski and
Kovitz, A. A., Fu, Hui-Ming
openaire   +1 more source

Numerical comparison of H2/air catalytic combustion characteristic of micro–combustors with a conventional, slotted or controllable slotted bluff body

, 2019
The flame instability and low combustion efficiency are still two vital problems to be solved in micro–combustion power field. In this work, the detailed chemical reaction mechanism of H2/O2 is used to numerical study the combustion characteristics of ...
Yunfei Yan, Yuehan Liu, Lixian Li, Yujun Cui, Li Zhang, Zhongqing Yang, Zhien Zhang   +6 more
semanticscholar   +1 more source

Bluff-body aerodynamics and turbulence

Journal of Wind Engineering and Industrial Aerodynamics, 1993
Abstract This paper reviews recent findings on the effects of freestream turbulence on bluff-body flow and flutter. Materials of this review are mostly taken from the author's own wind-tunnel measurements on 2D and 3D bluff bodies with rectangular cross-sections. The effects of both turbulence intensity and scale are discussed in detail.
openaire   +1 more source

A self-tunable wind energy harvester utilising a piezoelectric cantilever beam with bluff body under transverse galloping for field deployment

, 2021
Y. Lim, R. V. Padilla, A. Unger, R. Barraza, A. Thabet, I. Izadgoshasb   +5 more
semanticscholar   +1 more source

Study of the effect of bluff body size on stability limits of a premixed natural gas swirl burner

Journal of Thermal Analysis and Calorimetry, 2021
M. Behzadi, Seyed Hamzeh Siyadat, F. Ommi, Z. Saboohi   +3 more
semanticscholar   +1 more source

Flow dynamics of bluff bodies

2017
A computational study investigating the flow past bluff bodies in the low Reynolds numbers range (Re ≤ 750) is presented. Two- and three-dimensional investigations are performed to investigate various flow transitions that occur when canonical bluff bodies such as circular cylinders and spheres are placed near a planar boundary, rotated or a ...
openaire   +1 more source

Perspectives on bluff body aerodynamics

Journal of Wind Engineering and Industrial Aerodynamics, 1993
The variations of drag and base suction of circular cylinders and bluff plates over the range of Reynolds number from 10 to 10^7 is discussed, with emphasis on the importance of the separated shear layers. A model for flows with a wake splitter plate is proposed. Effects of “three dimensionality” are discussed.
openaire   +2 more sources

Bluff Body Aerodynamics

Journal of Structural Engineering, 1986
openaire   +1 more source

Basic bluff-body aerodynamics

2020
John D. Holmes, Seifu A. Bekele
openaire   +1 more source