Numerical Study of Hydrothermal Wave Suppression in Thermocapillary Flow Using a Predictive Control Method

Muldoon, Frank

doi:10.1134/s0965542518040127

Cited by 1 publication

(1 citation statement)

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“…Control strategies utilizing feedback have also been investigated; see, e.g., Refs. [7,114,140]. In the case of a half-zone liquid bridge, the onset of oscillatory convection may be delayed by more than 40% through appropriate placement of sensors and heaters to modify the surface temperature [151].…”

Section: Strategies For Controlmentioning

confidence: 99%

A review of fluid instabilities and control strategies with applications in microgravity

Porter

Sánchez

Shevtsova

et al. 2021

Math. Model. Nat. Phenom.

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We give a brief review of several prominent fluid instabilities representing transitions driven by gravity, surface tension, thermal energy, and applied motion/acceleration. Strategies for controlling these instabilities, including their pattern formation properties, are discussed. The importance of gravity for many common fluid instabilities is emphasized and used to understand the sometimes dramatically different behavior of fluids in microgravity environments. This is illustrated in greater detail, using recent results, for the case of the frozen wave instability, which leads to large columnar structures in the absence of gravity. The development of these highly nonlinear states is often complex, but can be manipulated through an appropriate choice of forcing amplitude, container length and height, initial inclination of the surface, and other parameters affecting the nonlinear and inhomogeneous growth process. The increased opportunity for controlling fluids and their instabilities via small forcing or parameter changes in microgravity is notable.

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