Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Comparative study of sinusoidal and non‐sinusoidal two‐frequency internal heat modulation in a Rayleigh‐Bénard system
A linear stability analysis is assented to investigate the effect of two‐frequency internal heat modulation at the onset of convection in a Newtonian liquid. The correction Rayleigh number and wave number for small amplitudes is calculated using the Venezian approach. Under two‐frequency internal heat modulation, the motion is found to be subcritical. To quantify heat transfer in the system, the three‐mode Lorenz model is solved numerically. Various combinations of sinusoidal and non‐sinusoidal waveforms influence the onset of convection and heat transfer in the system due to two‐frequency internal heat modulation. The parameters' influence on heat transfer is seen to be dependent on the presence of a heat source or sink.
Comparative study of sinusoidal and non‐sinusoidal two‐frequency internal heat modulation in a Rayleigh‐Bénard system
A linear stability analysis is assented to investigate the effect of two‐frequency internal heat modulation at the onset of convection in a Newtonian liquid. The correction Rayleigh number and wave number for small amplitudes is calculated using the Venezian approach. Under two‐frequency internal heat modulation, the motion is found to be subcritical. To quantify heat transfer in the system, the three‐mode Lorenz model is solved numerically. Various combinations of sinusoidal and non‐sinusoidal waveforms influence the onset of convection and heat transfer in the system due to two‐frequency internal heat modulation. The parameters' influence on heat transfer is seen to be dependent on the presence of a heat source or sink.
Comparative study of sinusoidal and non‐sinusoidal two‐frequency internal heat modulation in a Rayleigh‐Bénard system
Mathew, Ansa (Autor:in) / Pranesh, S. (Autor:in)
Heat Transfer ; 51 ; 2780-2807
01.05.2022
28 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| NTIS | 1995