Currently what is the maximum accuracy achieved by an infrared camera for temperature measurement?

the measurement of surface temperature by thermographic measurements has become a very important measure in several fields of industry but also in the field of research. From there it is important...

06 July 2019 7,980 4 View

In the context of studying the propagation of heat in the form of waves, what is the physical significance of the reflection coefficient?

The study of heat propagation can be done using wave formalism. In these conditions what is the physical significance of the reflection coefficient which obviously relates to the effusivities of...

08 September 2018 1,345 0 View

Is it possible to study heat transfer in a non homogenous structure by transfer matrix concept?

How to study the heat transfer in a non homogenous structure by using thermal transfer matrix. because thre is no homogenus plans to make the product matrix.

10 November 2017 1,200 4 View

Between Ansys and Femlab softwares, whitch one is the more simple, flexible and the cheapest for thermal simulations?

We are looking for a software of thermal simulation and we want to compare Ansys and Femlab

05 June 2016 1,844 2 View

What is the best way to measure the surface temperature on a wall in civil engineering ?

is it to put directly the sensor on the wall or to make a groove in which the sensor in introduced by using silicon grease ?

04 May 2016 8,533 13 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

How to improve and implement WBAN MAC and Radio modules under Castalia 3.2 ?

Hello researchers, Hello Castalia3.2 researchers I am a beginner with Castalia, I work on optimization of RFID systems used in wireless body networks. I simulated a WBAN with 10 nodes and one...

28 February 2021 400 1 View

Compact antenna for the frequency range 1 MHz-5 MHz?

Hello everybody! I have a problem with developing a compact antenna for the 1MHz-5MHz frequency range. Tell me what type of antenna can be used and what books and articles to read to perform this...

27 February 2021 7,710 4 View