WordNet
- the retarding force of air friction on a moving object
- the deflection of a projectile resulting from the effects of wind (同)wind deflection
- exposure to the wind (as the exposed part of a vessels hull which is responsible for wind resistance) (同)wind exposure
- the space between the projectile of a smoothbore gun and the surface of the bore of the gun
PrepTutorEJDIC
- 弾丸に与える風の影響,偏流 / (弾丸の)偏流度
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/10/15 17:07:49」(JST)
[Wiki en表示]
Windage is a force created on an object by friction when there is relative movement between air and the object.
There are two causes of windage:
- the object is moving and being slowed by resistance from the air
- a wind is blowing producing a force on the object
The term can refer to either:
- the effect of the force, for example the deflection of a missile or an aircraft by a cross wind, or
- the area and shape of the object that make it susceptible to friction, for example those parts of a boat that are exposed to the wind.
Aerodynamic streamlining can be used to reduce windage.
There is a hydrodynamic effect similar to windage.
In firearms parlance, windage refers to the side-to-side adjustment of a sight, used to change the horizontal component of the aiming point. (The up-down adjustment for the vertical component is the elevation.) It can also refer to the difference in diameter between the bore and the shot, especially in muskets and cannons.[1]
In automotive parlance, windage refers to parasitic drag on the crankshaft caused by oil splashing out of the sump at high rpm. At 6,000 rpm, for example, the crankshaft must rotate 100 times per second. As the crankpins and counterweights rotate at such high speeds, they create a swirling cloud of air around them. Windage is considered to occur when excess oil is caught up in this turbulent air, drawing energy from the engine to spin the oil mist. Windage may also inhibit the migration of oil into the sump and back to the oil pump, creating lubrication problems. Some manufacturers and aftermarket vendors have developed special scrapers to remove excess oil from the counterweights, and windage screens to create a barrier between the crankshaft and oil sump.[2][3]
Notes
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References
- ^ Kingsbury, Charles P. (1849). An elementary treatise on artillery and infantry. New York: GP Putnam. p. 59. OCLC 761213440. http://books.google.com/books?id=z9xVAAAAYAAJ&dq=%22cannon%22%20bronze%20iron&pg=PA59#v=onepage&q=windage&f=false.
- ^ http://www.crank-scrapers.com/What%20is%20a%20crank-scraper.html
- ^ http://www.circletrack.com/techarticles/ctrp_0603_oil_pan_design_windage_tech/index.html
English Journal
- Windage Heating in a Shrouded Rotor-Stator System.
- Tao Z1, Zhang D2, Luo X3, Xu G4, Han J5.
- Journal of engineering for gas turbines and power.J Eng Gas Turbine Power.2014 Jun;136(6):0626021-6260210. Epub 2014 Feb 4.
- This paper has experimentally and numerically studied the windage heating in a shrouded rotor-stator disk system with superimposed flow. Temperature rise in the radius direction on the rotating disk is linked to the viscous heating process when cooling air flows through the rotating component. A tes
- PMID 25805919
- Litter survey detects the South Atlantic 'garbage patch'.
- Ryan PG1.
- Marine pollution bulletin.Mar Pollut Bull.2014 Feb 15;79(1-2):220-4. doi: 10.1016/j.marpolbul.2013.12.010. Epub 2013 Dec 18.
- A distance-based technique was used to assess the distribution and abundance of floating marine debris (>1cm) in the southeast Atlantic Ocean between Cape Town and Tristan da Cunha, crossing the southern edge of the South Atlantic 'garbage patch' predicted by surface drift models. Most litter was
- PMID 24360332
- Cylindrical quasi-cavity waveguide for static wide angle pattern projection.
- Sahba K, Alameh KE, Smith CL, Paap A.
- Optics express.Opt Express.2007 Mar 19;15(6):3023-30.
- Beam deflection methods such as rotary mirrors and motorized turning optical heads suffer from a variety of electro-mechanical related problems which affect laser scanning performance. These include wobble, jitter, wear, windage and synchronization issues. A novel optical structure consisting of two
- PMID 19532541
- Direct mail and Kentucky windage.
- Riggs L.
- HealthMarketing.Healthmarketing.1986 Nov-Dec;5(6):9-10.
- PMID 10280825
Japanese Journal
- 風損低減を目的とした歯車の自己ポンプ作用の実験的評価（箱内の減圧量，損失および発熱について）
- 風損低減を目的とした歯車の自己ポンプ作用の実験的評価（箱内の減圧量，損失および発熱について）
- S1160203 歯車の自己ポンプ作用による歯車箱内減圧時の損失および発熱の実験的評価([S116-02]伝動装置の基礎と応用(2),機素潤滑設計部門)
- 年次大会 : Mechanical Engineering Congress, Japan 2014, "S1160203-1"-"S1160203-4", 2014-09-07
- NAID 110009945263
Related Links
- 東京都世田谷区三軒茶屋の小さなデザイン事務所、windage.
- Windage is a force created on an object by friction when there is relative movement between air and the object. There are two causes of windage: the object is moving and being slowed by resistance from the air; a wind is blowing producing a ...
- a. The effect of wind on the course of a projectile. b. The point or degree at which the wind gauge or sight of a rifle or gun must be set to compensate for the effect of the wind. c. The difference in a given firearm between the diameter of the ...