Recent content by shushu97

Read chapter 8 here: http://web.mit.edu/lienhard/www/ahtt.html

A place to start... http://en.wikipedia.org/wiki/Darcy_friction_factor

Use a bigger pump and translate your results with the pump scaling laws?

I have a master degree in mechanical engineering and still looking for an interesting job. All the jobs I had till now didn't really require all what I have learnt. It seems that apart from military related industry (where I don't want to work) the selection is very limited.

Conservation of energy.

Beyond the yield point less force is needed to deform the material due to weaker inter-molecular forces. The slope of the curve decreases. The biggest difference between the engineering and true curve is after the ultimate tensile stress. At yield point the area is almost the same as the initial...

Beyond the yield point less force is needed to deform the material due to weaker inter-molecular forces. The slope of the curve decreases. The biggest difference between the engineering and true curve is after the ultimate tensile stress. At yield point the area is almost the same as the...

Second law of thermodynamics (Kelvin-Planck statement): "It is impossible for any system to operate in a thermodynamic cycle and deliver a net amount of energy by work to its surroundings while receiving energy by heat transfer from a single thermal reservoir".

The energy of the combined system (system and environment) must be conserved. So any change in the energy of the system must be absorbed by the environment. Imagine considering the vicinity of the system for the conservation of energy and then moving far away in the environment where properties...

The energy of the combined system (system and environment) must be conserved. So any change in the energy of the system must be absorbed by the environment. Imagine considering the vicinity of the system for the conservation of energy and then moving far away in the environment where...

The environment is assumed to be infinite so the temperature and pressure remain constant. At the same time there must be conservation of energy.

The environment is assumed to be infinite so the temperature and pressure remain constant. At the same time there must be conservation of energy.

can you please give a drawing?

Thanks! I know B is a wider scale but I am only interested in measuring aluminum alloys. There is also a rule of thumb that the higher the load the better (B is 100 kg with 1/16" steel sphere compared to 100 kg with 1/8" steel sphere in E). Another rule of thumb says the specimen thickness...

Thanks! I know B is a wider scale but I am only interested in measuring aluminum alloys. There is also a rule of thumb that the higher the load the better (B is 100 kg with 1/16" steel sphere compared to 100 kg with 1/8" steel sphere in E). Another rule of thumb says the specimen thickness...