Results 21 to 30 of about 7,205,759 (240)

Radiative heat transfer during turbulent combustion [PDF]

, 2009
We investigate the radiative heat transfer in a co-flowing turbulent nonpremixed propane-air flame inside a three-dimensional cylindrical combustion chamber.
S. C. Paul, Paul, S.C., Paul, M.C., M. C. Paul   +3 more
core   +1 more source

Comparison of soot radiation in diesel flame given by mathematical model and by experimental data

Vietnam Journal of Mechanics, 2007
An integral unidirectional model is established to calculate radiation heat transfer of Diesel flame in the open air and in combustion chamber of engine.
Bui Van Ga, Tran Van Nam, Nguyen Ngoc Linh   +2 more
doaj   +1 more source

Theoretical analysis of the conical premixed flame response to upstream velocity disturbances considering flame speed development effects

Propulsion and Power Research, 2017
The effect of upstream velocity perturbations on the response of a premixed flame was investigated in terms of the flame transfer function dependency on excitation frequency.
Ghazaleh Esmaeelzade, Mohammad Reza Khani, Rouzbeh Riazi, Mohammad Hossein Sabour   +3 more
doaj   +1 more source

Reconstruction of 3D Temperature Profile of Radiative Participatory Flame Based on Digital Refocusing Technique of Light Field Camera

International Journal of Photoenergy, 2019
Accurate and reliable measurements of the 3D flame temperature profile are highly desirable to achieve in-depth understanding of the combustion and pollutant formation processes.
Biao Zhang, Chen Wang, Yudong Liu, Chuanlong Xu, Qi Qi   +4 more
doaj   +1 more source

Model Comparisons of Flow and Chemical Kinetic Mechanisms for Methane–Air Combustion for Engineering Applications

Applied Sciences, 2021
The reasonably accurate numerical simulation of methane–air combustion is important for engineering purposes. In the present work, the validations of sub-models were carried out on a laboratory-scale turbulent jet flame, Sandia Flame D, in comparison ...
Di He, Yusong Yu, Yucheng Kuang, Chaojun Wang   +3 more
doaj   +1 more source

CFD-Based Prediction of Combustion Dynamics and Nonlinear Flame Transfer Functions for a Swirl-Stabilized High-Pressure Combustor

Energies, 2023
Thermoacoustic instabilities in gasturbine combustor systems can be predicted in the design phase with a thermoacoustic network model. In this model, the coupling between acoustic pressure fluctuations and the combustion rate is described by the Flame ...
Mehmet Kapucu, Jim B. W. Kok
doaj   +1 more source

Experimental Investigation of Thermoacoustics and High-Frequency Combustion Dynamics with Band Stop Characteristics in a Pressurized Combustor

Energies
In combustor systems, thermoacoustic instabilities may occur and must be avoided for reliable operation. An acoustic network model can be used to predict the eigenfrequencies of the instabilities and the growth rate by incorporating the combustion ...
Mehmet Kapucu, Jim B. W. Kok, Artur K. Pozarlik   +2 more
doaj   +1 more source

Experiment investigation of the effects of hydrogen content on the combustion instability of methane/hydrogen lean premixed swirl flames under different acoustic frequency ranges

AIP Advances, 2019
Experimental study on combustion instability of lean premixed swirl flame was conducted for methane-hydrogen mixtures, and the influence mechanism of hydrogen content (0%, 10%, 20%, and 40%) on the combustion instability under different acoustic ...
Mingxiao Wang, Yingjie Zhong, Kai Deng
doaj   +1 more source

Evaluation on Sensitivity and Approximate Modeling of Fire-Resistance Performance for A60 Class Deck Penetration Piece Using Heat-Transfer Analysis and Fire Test

한국해양공학회지, 2021
The A60 class deck penetration piece is a fire-resistance apparatus installed on the deck compartment to protect lives and to prevent flame diffusion in the case of a fire accident in a ship or offshore plant.
Woo Chang Park, Chang Yong Song
doaj   +1 more source

Flame transfer function measurements of hydrogen-enriched reheat flames

This study experimentally investigates the dynamic behavior of hydrogen-natural gas reheat flames, which are stabilized by both flame propagation and autoignition.
Franke, Florian, Bothien, Mirko, Sattelmayer, Thomas   +2 more
core   +2 more sources