- #1
Krismein
- 12
- 1
- TL;DR
- What is the formula for Hertzian contact stress between two cylinders.
Hertzian Contact Stress - Two Cylinders
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Hertzian contact stress refers to the localized stress that occurs when two curved surfaces come into contact, such as two cylinders. This stress is critical in determining the performance and lifespan of mechanical components like bearings. The discussion emphasizes the importance of calculating contact pressure and understanding deformation under load to prevent failure. Key factors influencing Hertzian stress include material properties, surface roughness, and the geometry of the contacting bodies. Accurate analysis of these stresses is essential for reliable engineering design and maintenance.
- #2
Baluncore
Science Advisor
- 16,615
- 10,296
This is question for fluid mechanics.
Static pressure in the exhaust manifold(turbo car engine) is usually 1.2 to 2.5 times higher than the boost pressure(intake manifold pressure).Boost pressure is around 1bar guage pressure(2bar absolute).
Can the local static pressure somewhere inside a turbine housing ever be lower than atmospheric pressure, is this possible?
here some links where CFD is used...
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