Influence of internal heat source on double-diffusive soret induced convection in a binary fluid

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Colleges, School and Institutes

External organisations

  • Universiti Putra Malaysia


The neutral convection in a double-diffusive fluid layer subject to the internal heat source (internal heating) and thermodiffusion or also known as Soret effect is studied analytically. The influence of the internal heating is supplied by an internal volumetric source with a uniform distribution. Results show that the presence of internal heating in the binary fluid layer which is fluid layer heated and salted has a significant influence on the neutral convection where increasing the internal heating will destabilize the fluid system. Despite the destabilizing factor, an increase of the Solutal Rayleigh number spikes the critical Rayleigh number and thus ensures greater stability of the system. The instability gets fluctuate depending on values of Soret parameter in the presence of internal heating.


Original languageEnglish
Title of host publicationICREM7 2015 - Proceedings of the 7th International Conference on Research and Education in Mathematics
Subtitle of host publicationEmpowering Mathematical Sciences through Research and Education
Publication statusPublished - 14 Dec 2015
Event7th International Conference on Research and Education in Mathematics, ICREM7 2015 - Kuala Lumpur, Malaysia
Duration: 25 Aug 201527 Aug 2015


Conference7th International Conference on Research and Education in Mathematics, ICREM7 2015
CityKuala Lumpur


  • convection, galerkin method, internal heating, soret parameter, stability analysis