CFD simulation of hydrodynamic characteristics on pulse combustor

Annie Mufyda Rahmatika, Efaning Salihat, Rachma Tikasari, W. Widiyastuti*, Sugeng Winardi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The purpose of this research is to study the simulation of the combustion characteristics and performances in pulse combustor using different excess air composition and different pulse combustor geometry using CFD (Computational Fluid Dynamics) software Ansys FLUENT 15.0. The distribution of temperature, pressure, and fluid velocity using 2D axisymmetric with k-ε turbulence models. Two kind geometries of pulse combustors were selected and compared their performance. The first combustor, called geometry A has expanded tail-pipe with diameter 10?mm expanded to 20?mm with length 86?mm. The second combustor, called geometry B has cylinder tailpipe which 10?mm in diameter and 200?mm in length. Air and propane were selected as oxidizer and fuel, respectively, at temperature 27°C and pressure 1 atm with varied excess air of 0%, 23%, 200%, and 500%. The simulation result shows that the average temperature of outflow gas combustion decreased with increasing the excess air. On the other hand, the pressure amplitude increased with increasing the excess air. Amplitude of presure for excess air of 0%, 23%, 200% and 500% were 14,976.03?Pa; 26,100.19?Pa; 41,529.02?Pa; and 85,019.01?Pa, respectively. The geometry of pulse combustor affected the performance of gas combustion produced. Geometry A showed that the energy produced in the combustion cycle amounts to 538,639 to 958,639?J/kg. On the other hand, geometry B showed that the generated energy was in the range 864,502 to 1,280,814?J/kg. Combustor with geometry B provided more effective combustion performance rather than B caused by its larger heat transfer area sectional area.

Original languageEnglish
Title of host publication6th Nanoscience and Nanotechnology Symposium, NNS 2015
EditorsAdrian Nur, Fitria Rahmawati, Agus Purwanto, Endah Retno Dyartanti, Arif Jumari
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413573
Publication statusPublished - 8 Feb 2016
Event6th Nanoscience and Nanotechnology Symposium, NNS 2015 - Surakarta, Indonesia
Duration: 4 Nov 20155 Nov 2015

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference6th Nanoscience and Nanotechnology Symposium, NNS 2015


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