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Volume

The Micro Reactor Dynamics

Mastering Marangoni Convection and Fluid Flow in Melt Pools

Inside the liquid heart of the weld, a violent storm dictates the strength of your creation.

Strategic Objectives

• Master the physics of surface tension-driven flow and Marangoni convection.

• Identify the root causes of pore entrapment and gas porosity in liquid metal.

• Optimize heat transfer models to predict melt pool geometry with precision.

• Control transient turbulence to eliminate internal structural inconsistencies.

The Core Challenge

Traditional manufacturing overlooks the chaotic fluid dynamics of the melt pool, leading to unpredictable internal defects and structural failure.

01

The Transient Micro-Reactor

02

Driving Forces of Convection

03

Fluidity in Extremes

04

The Mechanics of Surface Tension

05

Thermal Gradients and Flow

06

Heat Transfer Mechanisms

07

Dimensionless Analysis

08

The Onset of Turbulence

09

Navier-Stokes in the Melt Pool

10

Vaporization and Recoil Pressure

11

The Keyhole Phenomenon

12

Pore Entrapment Mechanisms

13

The Capillary Effect

14

Thermocapillary Flows

15

Computational Fluid Dynamics

16

Boundary Layer Interactions

17

Mass Transport in Melting

18

Rayleigh-Lamb Instabilities

19

Surfactants and Impurities

20

Laser-Matter Interaction

21

Defect Mitigation Strategies

Available eBook Editions