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Related Concept Videos

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Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
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Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

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Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
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Modeling and Similitude01:12

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Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
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Updated: Jun 26, 2025

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores
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Development and Validation of a Low-Cost Drilling Model.

Janice Chin-Yi Liao1, Lan Anh Thi LE1,2, Mabel Qi-He Leow1

  • 1Department of Hand and Reconstructive Microsurgery, National University Health Systems, Singapore.

The Journal of Hand Surgery Asian-Pacific Volume
|May 10, 2024
PubMed
Summary

A new low-cost surgical drilling simulator effectively trains residents in bone drilling accuracy and depth control. This accessible tool allows for independent practice, enhancing surgical skill development.

Keywords:
DrillingEducationSimulationSurgical educationTraining in hand surgery

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Area of Science:

  • Surgical Simulation
  • Medical Education Technology
  • Orthopaedic Training

Background:

  • Simulation models offer repeated practice for surgical skills mastery and confidence-building.
  • Developing and evaluating a low-cost drilling model for surgical training is crucial for accessibility.
  • The model aims to improve plunge depth control, bone-medullary canal differentiation, and angled drilling accuracy.

Purpose of the Study:

  • To develop and assess the feasibility of an inexpensive surgical drilling simulator.
  • To train surgeons, particularly residents, in essential drilling techniques.
  • To provide a tool for independent, self-assessed surgical practice.

Main Methods:

  • A cross-sectional study involving expert and novice orthopedic/hand surgeons.
  • Development of a low-cost (<$5) polyvinyl chloride (PVC) and silicone drilling simulator.
  • Utilized a Bosch drill with a K-wire, measuring time, plunge depth, far cortex penetration, and accuracy.

Main Results:

  • Experts demonstrated significantly better control over plunge depth (p=0.0003) and accuracy (p=0.04).
  • While experts were 20% faster, this difference was not statistically significant (p=0.43).
  • The simulator successfully differentiated between bone and medullary canal for participants.

Conclusions:

  • The developed low-cost drilling model is a feasible and valuable tool for resident surgical training.
  • It enables residents to practice drilling tasks independently and at their own pace.
  • The simulator aids in developing critical psychomotor skills and confidence in surgical procedures.