Mass Flow Rate Calculator
Mass flow rate is the mass of a substance that passes through a given surface per unit of time. It is a fundamental concept in fluid dynamics and is crucial for many engineering and scientific applications, such as in chemical processing, aerospace, and mechanical systems.
The basic formula for mass flow rate (ṁ) is:
ṁ = ρ * A * v
Where:
- ṁ is the mass flow rate (e.g., kg/s)
- ρ (rho) is the density of the fluid (e.g., kg/m³)
- A is the cross-sectional area through which the fluid is flowing (e.g., m²)
- v is the average velocity of the fluid (e.g., m/s)
Alternatively, if the volumetric flow rate (Q) is known:
ṁ = ρ * Q
Where:
- Q is the volumetric flow rate (e.g., m³/s)
function calculateMassFlowRate() {
var density = parseFloat(document.getElementById("density").value);
var area = parseFloat(document.getElementById("area").value);
var velocity = parseFloat(document.getElementById("velocity").value);
var resultElement = document.getElementById("result");
resultElement.innerHTML = ""; // Clear previous results
if (isNaN(density) || isNaN(area) || isNaN(velocity)) {
resultElement.innerHTML = "Please enter valid numbers for all fields.";
return;
}
if (density < 0 || area < 0 || velocity < 0) {
resultElement.innerHTML = "Input values cannot be negative.";
return;
}
var massFlowRate = density * area * velocity;
resultElement.innerHTML = "
Result:
" +
"Mass Flow Rate (ṁ):
" + massFlowRate.toFixed(4) + " kg/s";
}
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