Flow rate is a fundamental concept in fluid dynamics, representing the volume of fluid that passes through a given surface per unit of time. It's a crucial metric in various fields, including plumbing, hydraulics, chemical engineering, and even biology. Understanding flow rate helps in designing systems, monitoring performance, and ensuring safety.
The basic formula for flow rate (Q) is:
Q = A * v
Where:
Q is the volumetric flow rate
A is the cross-sectional area of flow
v is the average velocity of the fluid
Alternatively, if you know the volume (V) of fluid that has passed in a certain time (t), the formula is:
Q = V / t
This calculator allows you to determine the flow rate using either of these methods.
Method 1: Using Area and Velocity
Method 2: Using Volume and Time
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#result {
margin-top: 20px;
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function calculateFlowRateMethod1() {
var areaInput = document.getElementById("area");
var velocityInput = document.getElementById("velocity");
var resultDiv = document.getElementById("result");
var area = parseFloat(areaInput.value);
var velocity = parseFloat(velocityInput.value);
if (isNaN(area) || isNaN(velocity) || area <= 0 || velocity < 0) {
resultDiv.innerHTML = "Please enter valid positive numbers for Area and Velocity.";
return;
}
var flowRate = area * velocity;
resultDiv.innerHTML = "Calculated Flow Rate: " + flowRate.toFixed(4) + " m3/s";
}
function calculateFlowRateMethod2() {
var volumeInput = document.getElementById("volume");
var timeInput = document.getElementById("time");
var resultDiv = document.getElementById("result");
var volume = parseFloat(volumeInput.value);
var time = parseFloat(timeInput.value);
if (isNaN(volume) || isNaN(time) || volume < 0 || time <= 0) {
resultDiv.innerHTML = "Please enter valid positive numbers for Volume and Time (Time must be greater than 0).";
return;
}
var flowRate = volume / time;
resultDiv.innerHTML = "Calculated Flow Rate: " + flowRate.toFixed(4) + " m3/s";
}