thermal instability
thermal instability
[′thər·məl ‚in·stə′bil·əd·ē] (fluid mechanics)
The instability resulting in free convection in a fluid heated at a boundary.
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References in periodicals archive
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According to the head of the met office, Kleanthis Nicolaides, isolated rains and storms are expected on Wednesday and Thursday mainly inland and in mountainous areas due to thermal instability and low pressure in the mesosphere.
In meteorology we look for combinations of thermal instability (e.g., cold air over warm air, or a cold air mass over heated terrain), vertical shear, and friction.
Since we can't make the air settle down and behave itself, that translates as avoidance: flying early in the morning or after dark to evade thermal instability, taking the long way around rather than trying to skirt thunderstorms or cross the most rugged line of mountains, and leaving enough time to make alternate arrangements to complete trips that can't be rescheduled.
That's unavoidable because of the moving parts and thermal instability involved.
Tzou, "Thermal instability of nanofluids in natural convection," International Journal of Heat and Mass Transfer, vol.
Linear conditions of isentropic and thermal instability in this particular case overlap.
On the left-bottom side of the nacelle, thermal instability starts to occur, giving birth to secondary air circulation core.
He investigates theoretically the thermal instability in a horizontal layer of Maxwellian visco-elastic nanofluid on the basis of Buongiorno's model for more realistic boundary conditions.
Ball, R., Oscillatory thermal instability and the Bhopal disaster, doi: 10.1016/j.psep.2011.06.004, Process Saf.
a) Clinical Bloodstream Infection--at least one of clinical signs (thermal instability, apnea, bradycardia, food intolerance, worsening respiratory distress, glucose intolerance, hemodynamic instability, and hypoactivity or lethargy) AND all of following criteria: hemogram with three altered parameters or increased C-Reactive protein; not performed or negative blood culture; no evidence of infection at another site; antimicrobial therapy initiated or sustained by the attending physician.
This allows the lidocaine to disperse, minimizing the risk of ulceration from the thermal instability that a depot of lidocaine could cause, he said.
(5) They also show unusual osmotic fragility, which together with the thermal instability, can result in an MCV as low as 25 to 75 fL.
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