Mathan Sambu

12 Questions 13 Answers 0 Followers

Questions related from Mathan Sambu

May know why the Coupling iteration output not similar (for fluent & transient RMS) even the coupling completed successfully using FSI Two-Way method?

I'm running FSI two-way method for simple cantilever beam (solid) under cylindrical fluid domain (water). Simulation setup under Transient (mechanical) and Fluent (CFD) coupled using system...

27 March 2022 1,408 0 View

Looking for guidance to get 3-phase battery dc/ac bi-directional converter simulink circuit?

I'm currently working on peak shaving using Solar PV-battery system via matlab simulink. I'm looking for guidance me to get 3-phase battery dc/ac bi-directional converter simulink circuit....

28 April 2020 1,978 3 View

Any exact snow loading factor calculation method for signage structures (non occupancy)?

Finding for calculation method & solution to identity SNOW LOADING FACTOR for structures as signage / billboard. Kindly attach if got any references book or paper. Thank you.

16 November 2017 6,693 2 View

For acoustical material, is a higher value of Air Flow Resistivity (N.s.m−4) better or is a more lower value better?

Testing the air flow resistivity of an acoustical material, getting higher value as 10000 N.s.m−4 is good or lower value as 1000 N.s.m−4 is better. In term of their influence for sound absorption...

09 December 2015 865 4 View

Why do natural fibre's acoustical performances drop in mid-range frequency?

When obtaining sound absorption coefficient of Kenaf (Hibiscus Cannabinus- natural fiber) mix with latex rubber, results show that a drop performance at mid range frequency. Refer to the graph,...

22 October 2015 9,295 5 View

Are there any strong reasons or advantages for using the Delany-Bazley model compared to other empirical models?

I seeking for best answers and the advantages of using Delany-Bazley empirical model that used to predict sound absorption value, comparing to other models that proposed by Allard-Johnson, Miki or...

27 April 2015 4,005 2 View

Is there any prediction model or method to validate sound absorption coefficient value, alpha?

I'm searching for acoustical propagation model to validate my sound absorption coefficient value that obtain from two-mic impedance tube method. Seeking for other than Delany-Bazley and...

09 March 2015 692 9 View

Is it possible get Air Flow Resistivity for acoustics material using any modelling software?

I am seeking a way to get air flow resistivity value to predict my acoustic materials`s alpha value. Is there any software that using finite element or modelling method to identify it? what...

01 March 2015 9,405 6 View

What are the exact Durability Tests for Acoustical Material?

Im seeking for exact Durability Properties Test`s for acoustical material that made from natural fiber. Anybody knows the exact with the ASTM? Thank you to all.

14 February 2015 4,384 1 View

Anybody could list for me the Acoustic Performance Estimation / Prediction Softwares?

Anybody could help me find a good Acoustic Performance Estimation / Prediction Software. Just to identify by using the multilayer and obtain Sound Absorption value (alpha). Creating model room and...

20 January 2015 4,651 4 View

How to obtain or derive IMPEDANCE TUBE (2 microphones) method in mathematical formula term?

I would like to know and understand more on Impedance Tube method to obtain on acoustical properties in formula term. It may very helpful to me, by proving the term in derive way. Thank you to all.

20 December 2014 9,468 5 View

How to preserve the raw natural rubber for binding purpose with natural fiber?

Seeking any specific treatment to preserve the state of pure NR for my research without letting it to solidify in the long run such as the Latex Solution for Lab testing.

10 June 2014 3,893 4 View