آلبوم سیالات

[Hossein.B 3666]

Bernoulli’s theorem: steps on the surface of shallow water

 

 

 

Figure 6: Steps on the surface of shallow water.

 

 

[Hossein.B 3666]

soliton: intersection

 

 

 

Figure 7: Interaction of two solitons

 

 

 

[Hossein.B 3666]

Mach’s construction: shock front

 

 

 

Figure 8: Mach’s construction. (A) Source speed U less than speed of sound VS, (B) U greater than VS

 

 

 

[Hossein.B 3666]

laminar flow: associated stresses

 

 

 

Figure 9: Laminar motion and associated stresses

 

 

 

[Hossein.B 3666]

laminar flow: velocity profile

 

 

 

Figure 10: Velocity profile for laminar flow between two plates (or inside a cylindrical tube), driven by a pressure gradient

 

 

 

[Hossein.B 3666]

Magnus effect: streamlines for potential flow

 

 

 

Figure11: Streamlines for potential flow with circulation past a rotating cylinder. The cylinder experiences a downward Magnus force

 

 

 

[Hossein.B 3666]

Kelvin wedge: waves on deep water

 

 

 

Figure 12: Wave crests in the Kelvin wedge behind a source S that is moving steadily from left to right. The maximum wavelength λmax depends on the speed of the source, but the angle of the wedge does not

 

 

 

[Hossein.B 3666]

Thomson’s theorem: straight wave crests

 

 

 

Figure 13: The curved wave crests of Figure 12 result from the superposition of many sets of straight wave crests like the two shown here. These two sets and others that are intermediate in wavelength reinforce one another near the line of inclination β and interfere destructively elsewhere.

 

 

 

[Hossein.B 3666]

diffusion equation: motion of a plate through stationary fluid

 

 

 

Figure 14: Velocity profile established by motion of a plate through stationary fluid

 

 

 

[Hossein.B 3666]

boundary layer: flow past a stationary solid sphere

 

 

 

Figure 15: Flow past a stationary solid sphere

 

 

 

[Hossein.B 3666]

drag coefficient: fluid mechanics

 

 

Figure 16: Variation of drag coefficient with Reynolds number for spheres, cylinders, and disks

 

 

 

[Hossein.B 3666]

drag: methods for reduction

 

 

 

Figure 17: Methods for reducing drag

 

 

 

[Hossein.B 3666]

lift: starting vortex and bound vortex

 

 

 

Figure 18: Generation of lift force

 

 

 

[M!Zare 48037]

بنظرتون زیبایی و تطابق صدف حلزون با پمپ های سانتریفیوژ حیرت انگیز نیست؟ واقعا طبیعت شگفت انگیز است.

 

[alimec 23102]

قریب به یقین می گم لحظه ی شکست دیوار صوتی باشه

[M!Zare 48037]

الهام گیری از طبیعت

 

[alimec 23102]

هم زدن یک سیال ویسکوالاستیک توسط یک میله چرخان باعث تحدب سطح آزاد سیال میشه، درست برعکس سیال نیوتنی که تقعر... شکل رو نگاه کنید:سمت راستی سیال ویسکوالاستیک هست. سمت چپ سیال نیوتنی.

[M!Zare 48037]

تصویر هفدهم (از سری تصاویر مورد پرسش قرار گرفته) بنظر شما این تصویر چه جریانی است؟

 

[M!Zare 48037]

برخورد گلوله به یک صفحه فلزی

 

[zakiyeh.sh 11]

سلام کاش یکم بیشتر در موردش توضیح بدی