#MECFLU 3 Conceito Técnico de Fluido | Mecânica dos Fluidos | por Micelli Camargo

🎓 Want to delve deeper into this topic in industrial practice? Postgraduate Degree in Fluid Handling Engineering and Industrial Equipment ✅ Recognized by the MEC (Brazilian Ministry of Education) | ✅ Certified in the USA | ✅ Live Distance Learning 👉 www.engenhariaecia.com/pos 📲 WhatsApp: (11) 95696-7808 ────────────────────────────── BECOME A MEMBER and access the exclusive FLUID MECHANICS course:    / @engenhariaecia   ___________ Help Vila Vicentina de Itajubá, which has been caring for the elderly in the city of Itajubá-MG for 100 years. https://www.vilavicentina.com.br/ PIX Key CNPJ: 21.041.405/0001-48 Vila São Vicente de Paulo de Itajubá ___________ Subscribe to What'sNews da Engenharia e Cia and receive notifications about our posts, videos, and invitations. Access https://www.engenhariaecia.eng.br/new... or contact us directly on WhatsApp at +55 11 96552 4885 ___________ CONTACT: --- email: [email protected] --- WhatsApp: +55 11 95696 7808 _________ Learn about our courses: https://www.engenhariaecia.eng.br/cursos ________ LESSON TOPIC: In the third lesson of the "Easy and Uncomplicated Fluid Mechanics" series, the fundamental concept of fluid is reviewed, clearly differentiating it from solids and explaining its behavior under the action of forces. The starting point is the classic difference between the physical states of matter: solid, liquid, and gas. Solids have a defined shape and volume; liquids have a defined volume but assume the shape of the container; gases have neither a defined shape nor volume. Based on this distinction, liquids and gases are grouped into the category of fluids. A fluid is characterized by being soft and highly deformable, unlike solids, which resist deformation. When a small force is applied to a solid, it tends to maintain its shape, returning to its original state after the force is removed, provided the elastic limit is not exceeded. A fluid, however, deforms continuously under the action of any tangential force, no matter how small. To illustrate this behavior, the lesson uses the experiment of two plates. In the case of a solid between the plates, a tangential force temporarily deforms the material. In contrast, a fluid between these plates deforms continuously while the force is applied, without returning to its original state. Another important concept is the principle of adhesion: a fluid adheres to the surface with which it is in contact, acquiring its velocity. Thus, the velocity of the fluid next to the moving upper plate is equal to that of the upper plate, while next to the fixed lower plate it is zero. The formal definition presented in the lesson is that a fluid is a substance that deforms continuously when subjected to a constant tangential force. Unlike solids, which resist tangential forces up to a certain limit, fluids never reach a new state of static equilibrium while this force is present.