![]() When I enter sqrt(Bx_emqa^2 + By_emqa^2) as my expression under Boundary Integration, does COMSOL 'know' to only integrate the radial component of the total flux density (since the azimuthal component contributes nothing to the flux given my surface)? Expressed in terms of cylindrical coordinates, some of this magnetic flux is directed in the radial direction and some is directed in the azimuthal direction. ![]() The question I am asking then is when calculating the flux, does COMSOL 'know' that only the radial component of the magnetic flux density contributes to the flux (given the surface I am integrating over)?įor instance sqrt(Bx_emqa^2 + By_emqa^2) gives me the magnitude of the magnetic flux density. (The azimuthal component of the magnetic flux density does not contribute anything.) Therefore only the radial component of the magnetic flux density contributes to the flux. In this case, with the curved surface I'm integrating over, the surface normal points only in the radial direction. The flux through a surface is computed by taking the dot product of the magnetic flux density vector and differential surface vector (and then integrating over the surface). It makes sense to me that the COMSOL answer I get will be in terms of Wb/m and I will have to multiply by the height of the object to get the flux in Wb. Fluid Dynamicsįor fluid dynamics and related fields, the calculator’s ability to compute mass flux is beneficial for assessing fluid flow rates.Thanks for your response. In electrical engineering, the tool can assist in analyzing electric fields, a fundamental aspect of circuit design and electromagnetic applications. In physics education, the Flux Calculator is an invaluable tool to help students understand the concept of flux and how it’s calculated. By inputting these values into the Flux Calculator, the resulting electric flux (Φ) is E ⋅ A = 10 V/m * 2 m² = 20 C/m². Exampleįor instance, let’s calculate the electric flux when the electric field vector E is 10 V/m and the area vector A is 2 m². E/B is the electric or magnetic field vector, and A is the area vector.įor mass flux, the formula is ṁ = ρ * V * A, where ṁ represents the mass flux or flow rate, ρ is the fluid density, V is the flow velocity, and A is the cross-sectional area. Here, Φ is the flux measured in coulombs per square meter (C/m²) for electric flux and in webers (Wb) for magnetic flux. In the case of electric and magnetic flux, the formula is Φ = E/B ⋅ A. Upon entering the correct inputs, the calculator promptly provides the flux value. For mass flux, additional inputs like fluid density and flow velocity are necessary. It requires users to input specific values, including the electric or magnetic field vector, and the area vector for electric and magnetic flux. ![]() The Flux Calculator works by applying the formulas for each type of flux-electric, magnetic, and mass. A Flux Calculator, therefore, is a mathematical tool that allows users to calculate electric, magnetic, and mass flux based on predefined formulas and inputs. It can be electrical, magnetic, or even related to fluid mechanics. Definitionįlux, in physics, is the total amount of a field’s force vectors passing through a surface. Fortunately, a handy tool known as the Flux Calculator is designed to simplify these complex calculations. One such concept is flux, which forms the cornerstone of several physics subfields. The field of physics is full of concepts and phenomena that can be hard to grasp, especially when it comes to calculations. ![]()
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