Harish

Bukingham-pi theorem

Bukingham-π(pi) Theorem This Bukingham-π(pi) theorem is used to determined the relation by discribing the physical phenomenon to the number of independent dimensions groups. The non dimension group is given by that a large number of physical variable are involved, in a dimensionally homogeneous containing ‘m’ fundamental dimensions. It is given by (n-m). The equation is …

Bukingham-pi theorem Read More »

Thermal conductivity of solids,gases and liquids

Thermal conductivity of solids, gases and liquids Solids:            Due to transfer of free electrons and lattice vibration heat conduction occurs. In some metals like pure type the heat conduction is more effectively due to moving of free electrons in single direction. Heat energy is transfer from high temperature to low …

Thermal conductivity of solids,gases and liquids Read More »

Different types of chips and under what conditions does each chip form

Different types of chips: Here we are going to learn about the formation of chips in a machining operation, chips are of different types and they are formed due to the different factors. when the workpiece is machined to get a required shape the cutting tool used to cut the workpiece. at the time of …

Different types of chips and under what conditions does each chip form Read More »

Pre-Whirl

PRE-WHIRL pre-whirl is known as the air to rotate and used to minimize the velocity before entering in to the impeller blade, it does not effect the mass of air flow and velocity of flow for reducing the reduce shock waves.due to running of centrifugal compressor with  a high speed  in gas turbine and jet …

Pre-Whirl Read More »