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Fan Boundary Condition in ANSYS Fluent: Ceiling Fan CFD

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ANSYS Fluent · CFD Tutorial Fan Boundary Condition in ANSYS Fluent: Ceiling Fan CFD Model a ceiling fan in a room without meshing a single blade — using Fluent's fan boundary condition and its pressure-jump model. Full workflow from geometry to airflow results. How do you simulate a ceiling fan pushing air around a room in CFD — without the nightmare of meshing and rotating the blades? The answer is one of Fluent's most useful and underrated tools: the fan boundary condition . It replaces the whole fan with a thin surface that simply adds a pressure rise to the flow, capturing the fan's effect at a tiny fraction of the cost. This tutorial walks through a complete ceiling fan simulation in ANSYS Fluent — geometry, named selections, mesh, adding the fan boundary condition, and reading the airflow — with screenshots from the full video. What This Tutorial Covers What Is the Fan BC? The Pressure-Jump Model Step 1: Room Geometry ...
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eQUEST Tutorial Part 1 - Download, Install & Weather Import (Guide)

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eQUEST · Building Energy · Tutorial Part 1 eQUEST Tutorial Part 1: Download, Install & Weather Import Get started with the free eQUEST building energy simulation tool — download it, install it, and import a real weather file so your energy model reflects your building's actual climate. eQUEST is the most popular free tool for building energy simulation — and this beginner tutorial gets you from zero to a weather-ready project. Whether you're a student, an HVAC engineer, or working toward green-building compliance, the first three things you must master are downloading eQUEST, installing it, and importing the correct weather file for your location. This guide (Part 1 of the series) walks through each step with screenshots from the video tutorial. What This Tutorial Covers What Is eQUEST? Step 1: Download eQUEST Step 2: Install eQUEST Step 3: Launch & New Project Step 4: Choose the Wizard Step 5: Get a Weather...
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Voltage Drop Calculator - Wire Size, NEC 3% & 5% (Free)

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Every metre of wire quietly steals a little voltage. As current pushes through a conductor's resistance, some voltage is lost as heat before it ever reaches the load — that's voltage drop . Too much of it and lights dim, motors overheat, and sensitive electronics misbehave. This free Voltage Drop Calculator tells you exactly how much voltage you'll lose for a given current, wire size, length and material — for single-phase, three-phase or DC — and checks it against the NEC 3% and 5% recommendations so you know whether to upsize your conductor. Table of Contents The Voltage Drop Calculator What Is Voltage Drop? The Voltage Drop Formula NEC 3% & 5% Limits Single-Phase vs Three-Phase Copper vs Aluminium How to Reduce Voltage Drop Worked Examples Common Mistakes FAQ The Voltage Drop Calculator Choose imperial (AWG) or metric (mm²), enter the circuit details, and get the voltage drop in volts and pe...
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