![]() Source also suggests a sting diameter of no more than about 30% of model base diameter. If the flow at model base is turbulent, critical sting length reduces to 3-5 model base diameters. If the flow at the rear end of a model (model base) is laminar, the critical sting length can be as much as 12-15 base diameters. Critical length of a sting (beyond which its influence on the flow around the model is small) is mostly dependent on Reynolds number. Has a conical fairing blending into the (wind tunnel) model support structure.įor minimum aerodynamic interference a sting should be as long as possible and have as small a diameter as possible, within the structural safety limits. A sting is usually a long shaft attaching to the downstream end of the model so that it does not much disturb the flow over the model. In experimental fluid mechanics, a sting is a test fixture on which models are mounted for testing, e.g. (STEM) career fields based on gender.A hypothetical wind tunnel model on a Z-sting (CAD model) Placing the stem of the earpiece between his teeth Our every thought and every action stem / stems. Is the part between a root and leaves "stem" I had to stem a rapid rush of retrospective thought before I quailed to the dismal present How to add fun problem-solving and STEM challenges to a.gathering "He tore out the stem and began to poke about in the water" ( transitive) to supply (something) with a stem or stemsĮtymology: Old English stemn related to Old Norse stafn stem of a ship, German Stamm tribe, Gothic stōma basis, Latin stāmen threadĪlternatives for stem sentences including".the following:"ĭo (problems) stem mainly from the characteristics.( transitive) to remove or disengage the stem or stems from.( transitive) to make headway against (a tide, wind, etc).( intransitive) usually followed by from: to be derived originate: the instability stems from the war.the very forward end of a vessel (esp in the phrase from stem to stern).the main upright timber or structure at the bow of a vessel.the tubular glass section projecting from the base of a light bulb or electronic valve, on which the filament or electrodes are mounted.the main, usually vertical, stroke of a letter or of a musical note such as a minim.the form of a word that remains after removal of all inflectional affixes the root of a word, esp as occurring together with a thematic element.any projecting feature of a component: a shank or cylindrical pin or rod, such as the pin that carries the winding knob on a watch. ![]()
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