This numerical analysis examines how radial temperature gradient influences the stabilization threshold of Taylor-Couette flow across a range of radius ratios (0.77 ≤ η ≤ 0.95). Numerical simulations were conducted for seven radius ratios, with a constant temperature gradient applied between the inner and outer cylinders. The primary objective was to determine the temperature gradient required to stabilize the flow at the threshold of transition from laminar to vortex flow. Velocity contours, vorticity, skin friction coefficient, velocity profiles, and streamlines were analyzed to assess flow stability. The results reveal that the minimum stabilizing temperature gradient occurs at a radius ratio of 0.877, beyond which the required temperature gradient increases significantly. For a radius ratio of 0.77, the Richardson number exceeds 10, leading to flow destabilization due to buoyancy forces. A predictive relationship for the stabilizing temperature gradient as a function of the radius ratio was derived. Additionally, the Nusselt number at the stabilizing temperature gradient was examined, and empirical correlations were provided. The findings highlight the critical role of temperature gradients in controlling flow stability and vortex suppression in Taylor-Couette systems, offering valuable insights for engineering applications.
Charmiyan, M. , Hashemi, A. M. , Joodaki, A. and Aloui, F. (2026). Stabilizing Taylor-Couette Flow via Temperature Gradients: Critical Thresholds and Heat Transfer Behavior at Various Radius Ratios. Journal of Heat and Mass Transfer Research, (), -. doi: 10.22075/jhmtr.2026.39808.1885
MLA
Charmiyan, M. , , Hashemi, A. M. , , Joodaki, A. , and Aloui, F. . "Stabilizing Taylor-Couette Flow via Temperature Gradients: Critical Thresholds and Heat Transfer Behavior at Various Radius Ratios", Journal of Heat and Mass Transfer Research, , , 2026, -. doi: 10.22075/jhmtr.2026.39808.1885
HARVARD
Charmiyan, M., Hashemi, A. M., Joodaki, A., Aloui, F. (2026). 'Stabilizing Taylor-Couette Flow via Temperature Gradients: Critical Thresholds and Heat Transfer Behavior at Various Radius Ratios', Journal of Heat and Mass Transfer Research, (), pp. -. doi: 10.22075/jhmtr.2026.39808.1885
CHICAGO
M. Charmiyan , A. M. Hashemi , A. Joodaki and F. Aloui, "Stabilizing Taylor-Couette Flow via Temperature Gradients: Critical Thresholds and Heat Transfer Behavior at Various Radius Ratios," Journal of Heat and Mass Transfer Research, (2026): -, doi: 10.22075/jhmtr.2026.39808.1885
VANCOUVER
Charmiyan, M., Hashemi, A. M., Joodaki, A., Aloui, F. Stabilizing Taylor-Couette Flow via Temperature Gradients: Critical Thresholds and Heat Transfer Behavior at Various Radius Ratios. Journal of Heat and Mass Transfer Research, 2026; (): -. doi: 10.22075/jhmtr.2026.39808.1885
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