Sensitivity of the Computational Domain Aspect Ratio for a Single Rising Bubble in a Hallimond Tube

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Ashraf Azmi
Ashraf Azmi
α Universiti Teknologi Petronas Universiti Teknologi Petronas

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Sensitivity of the Computational Domain Aspect Ratio for a Single Rising Bubble in a Hallimond Tube

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Abstract

This paper presents how a single rising bubble experiment in the Hallimond Tube can be predicted using computational fluid dynamics model. The study is emphasized on the effect of aspect ratio of cylinder domain to the pressure coefficient and axial velocity around the bubble. A rigid sphere with the radius of 0.00575 m using flow velocity of 0.25 m/s is considered in this study. Numerical and simulated data obtained by other researchers in the similar study were used to validate the simulation results fromcomputational fluid dynamics model. It was observed that a change in width in aspect ratio, causing significant change in the value of simulation data. The highest percentage of difference was observed at the vicinity of θ = 85.26 o which is 32.4%.

References

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Ashraf Azmi. 2014. \u201cSensitivity of the Computational Domain Aspect Ratio for a Single Rising Bubble in a Hallimond Tube\u201d. Global Journal of Research in Engineering - C: Chemical Engineering GJRE-C Volume 14 (GJRE Volume 14 Issue C1): .

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Version of record

v1.2

Issue date

June 2, 2014

Language
en
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Published Article

This paper presents how a single rising bubble experiment in the Hallimond Tube can be predicted using computational fluid dynamics model. The study is emphasized on the effect of aspect ratio of cylinder domain to the pressure coefficient and axial velocity around the bubble. A rigid sphere with the radius of 0.00575 m using flow velocity of 0.25 m/s is considered in this study. Numerical and simulated data obtained by other researchers in the similar study were used to validate the simulation results fromcomputational fluid dynamics model. It was observed that a change in width in aspect ratio, causing significant change in the value of simulation data. The highest percentage of difference was observed at the vicinity of θ = 85.26 o which is 32.4%.

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Sensitivity of the Computational Domain Aspect Ratio for a Single Rising Bubble in a Hallimond Tube

Ashraf Azmi
Ashraf Azmi Universiti Teknologi Petronas

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