While the demand is undeniable, we must address the elephant in the room: copyright. Venancio Besavilla’s works are copyrighted intellectual property. The circulation of unauthorized PDFs deprives the author and his estate of rightful income.
However, the reality in Philippine engineering education is that many students cannot afford the ₱800-1,200 price tag for a review book on top of tuition, transportation, and living expenses. UPD, being a state university, has a high proportion of students from lower-income backgrounds.
Ethical Alternatives:
If you do use a shared PDF, consider it a temporary aid. When you pass the board exam (as many Besavilla users do), buy a physical copy as a tribute and a desk reference for your engineering career.
The PDF typically features large, clear diagrams of gates (rectangular, circular, triangular). Besavilla provides a systematic method: 1) Find the centroid. 2) Compute the pressure at the centroid. 3) Multiply by area. He then introduces the "prism method" for irregular shapes—a lifesaver for board exams. fluid mechanics and hydraulics besavilla pdf upd
The PDF includes a dedicated table for sequent depths and energy loss. Besavilla teaches a mnemonic or a shortcut so you never confuse the pre-jump and post-jump Froude numbers.
To satisfy your curiosity, let’s look at what makes specific chapters in this PDF so valuable. While the demand is undeniable, we must address
Before opening Besavilla, read the corresponding chapter in Fluid Mechanics by Frank M. White (the classic UPD text) or Fundamentals of Fluid Mechanics by Munson. Understand the derivation of the Bernoulli equation. If you skip this, Besavilla’s shortcuts will feel like magic tricks without logic.
| Feature | Besavilla (Fluid Mechanics & Hydraulics) | Gillesania (CE Reference) | Hibbeler (Statics & Fluids) | | :--- | :--- | :--- | :--- | | Board Exam Focus | High | High | Low (General theory) | | Number of Solved Problems | Very High (~500+) | Medium (~200) | Low (~50) | | Shortcut Formulas | Many (time-savers) | Some | Few | | Theoretical Depth | Medium (Enough to pass) | Medium | High (Too detailed) | | UPD Exam Alignment | Good (indirectly) | Good | Excellent (for theory) | If you do use a shared PDF, consider it a temporary aid
For UPD students, the winning combination is: White/Munson for theory + Besavilla for solved problems + past UPD exams for practice.
Besavilla starts with dense tables of specific gravities and viscosities. His unique contribution is the "solved problems" section, which includes 50+ problems on capillary rise and viscosity torque problems (e.g., a rotating cylinder in a viscous fluid)—a classic UPD exam question.