What is difference between detonation and knocking ???

In some book both words are use with si and ci engine. in some ci and sI engine both have knocking. what is actually difference between these two word??

31 December 2018 6,497 2 View

If i want to set Ri= -1 in fluent how to set up?

03 April 2016 3,813 1 View

Does anybody knows about how to calculate Cd due to pressure and viscous?

Anyone know how to do that in CFD-post. Please answer asap. Thanks.

02 March 2016 197 0 View

What is saddle points in vortex shedding?

what is mean by saddle points in vortex shedding and how can it be captured?

01 February 2016 5,186 4 View

How fluent is calculating cd, cl values?

31 December 2015 8,009 0 View

Why as I am simulating flow behind square cylinder with buoyancy opposing case the result.out file shows reversed flow?

my question is is it my simulation is correct? flow is going from downwards to upwards and fluid temperature is high compare to cylinder.why is reversed flow occur?

11 December 2015 7,191 3 View

If carbon content is changed in steel whether modulus of elasticity change?

11 December 2015 7,447 3 View

In natural convection problem heat transfer is happening more in vertical pipe or horizontal pipe?

i am confused by below explanation: 1) According to Grashof number definition value of Gr is more in case of vertical pipe assuming other parameters are same so it shows that heat transfer is more...

11 December 2015 4,056 10 View

Why radiator in automobile is called radiator?

This question is asked because mode of heat transfer in radiator is forced convection so why it is called radiator? is there any way related to radiation?

10 November 2015 3,214 4 View

Why does pure water-glass have a capillary angle 0 but contaminated water glass has around 25?

I

10 November 2015 3,930 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

How to manually calculate p value in ANOVA? what is the equation or formula for it?

How to manually calculate p value in ANOVA? what is the equation or formula for it?

03 March 2021 4,928 5 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View